Juan Fernández de Heredia
Encyclopedia
Juan Fernández de Heredia (c. 1310 – 1396) was the Grand Master of the Knights Hospitaller from 24 September 1377 to his death. His tenure was occupied by the "affair of Achaea." He was also a great patron of the translation and composition of historiographical works in the Aragonese language
Aragonese language
Aragonese is a Romance language now spoken in a number of local varieties by between 10,000 and 30,000 people over the valleys of the Aragón River, Sobrarbe and Ribagorza in Aragon, Spain...

 and a counsellor to two Kings of Aragon.

Early life

Heredia was born in Munebrega
Munébrega
Munébrega is a municipality located in the province of Zaragoza, Aragon, eastern Spain....

, Aragon
Aragon
Aragon is a modern autonomous community in Spain, coextensive with the medieval Kingdom of Aragon. Located in northeastern Spain, the Aragonese autonomous community comprises three provinces : Huesca, Zaragoza, and Teruel. Its capital is Zaragoza...

. As a knight of the Hospitaller order (from 1328), Heredia was the commander of the castles of Villel
Villel
Villel is a municipality located in the province of Teruel, Aragon, Spain. , the municipality has a population of 366 inhabitants.Villel is home to a ruined medieval castle. It is the birthplace of 19th century statesman Francisco Tadeo Calomarde....

, Aliaga
Aliaga, Aragon
Aliaga is a municipality located in the province of Teruel, Aragon, eastern Spain....

, and Alfambra
Alfambra
Alfambra is a municipality located in the province of Teruel, Aragon, Spain. , the municipality has a population of 676 inhabitants....

. He was originally patronised by Peter IV of Aragon
Peter IV of Aragon
Peter IV, , called el Cerimoniós or el del punyalet , was the King of Aragon, King of Sardinia and Corsica , King of Valencia , and Count of Barcelona Peter IV, (Balaguer, September 5, 1319 – Barcelona, January 6, 1387), called el Cerimoniós ("the Ceremonious") or el del punyalet ("the one...

 and Pope Innocent VI
Pope Innocent VI
Pope Innocent VI , born Étienne Aubert; his father was Adhemar Aubert seigneur de Montel-De-Gelas in Limousin province. His niece was Catherine Aubert, Dame de Boutheon, also the wife of Randon II baron de Joyeuse; she is La Fayette's ancestor...

. Through the aid of the latter, the priories of Castile
Kingdom of Castile
Kingdom of Castile was one of the medieval kingdoms of the Iberian Peninsula. It emerged as a political autonomous entity in the 9th century. It was called County of Castile and was held in vassalage from the Kingdom of León. Its name comes from the host of castles constructed in the region...

, León
Kingdom of León
The Kingdom of León was an independent kingdom situated in the northwest region of the Iberian Peninsula. It was founded in AD 910 when the Christian princes of Asturias along the northern coast of the peninsula shifted their capital from Oviedo to the city of León...

, and Saint-Gilles
Saint-Gilles
Saint-Gilles is the name of several places, most of them named after Saint Giles.-Belgium:* Saint-Gilles is the French name for a municipality in the bilingual Brussels-Capital Region...

, the richest priory of the order, were bestowed upon him. He supported Peter IV against the Union of Aragon
Union of Aragon
The Union of Aragon was an anti-royalist movement among the nobility and the townsmen of the lands of the Crown of Aragon during the last quarter of the thirteenth century...

 and fought on his side in the successful Battle of Epila
Battle of Epila
The Battle of Épila refers to the armed conflict that took place on July 21, 1348 near Zaragoza, in what is now Spain, between the supporters of the Union of Aragon and King Peter IV, led by Don Lope de Luna...

 (1348).

In 1346, with the king of Aragon's support, he gained the castellany
Castellany
A castellany was a district administered by a castellan.Castellanies appeared during the Middle Ages and in most current states are now replaced by a more modern type of country subdivision....

 of Amposta
Amposta
Amposta is the capital of the comarca of Montsià, in the province of Tarragona, Catalonia, Spain.It is located at 8 metres above the sea, by the Ebre river, not far from its end. Population 18,841 ....

 (which was the priory of Aragon
Kingdom of Aragon
The Kingdom of Aragon was a medieval and early modern kingdom in the Iberian Peninsula, corresponding to the modern-day autonomous community of Aragon, in Spain...

). Heredia made himself and his family (and illegitimate children) enormously wealthy at the expense of the order. His power and influence was greatly circumscribed by the Grand Master Raymond Berengar, but in 1371 he entered the favour of Pope Urban V
Pope Urban V
Pope Urban V , born Guillaume Grimoard, was Pope from 1362 to 1370.-Biography:Grimoard was a native of Grizac in Languedoc . He became a Benedictine and a doctor in Canon Law, teaching at Montpellier and Avignon...

 and was elevated as the master's lieutenant in Western Europe.

Campaigns in Greece

In 1376, Heredia conducted the fleet bearing Pope Gregory XI
Pope Gregory XI
Gregory XI was pope from 1370 until his death.-Biography:He was born Pierre Roger de Beaufort, in Maumont, in the modern commune of Rosiers-d'Égletons, Limousin around 1336. He succeeded Pope Urban V in 1370, and was pope until 1378...

 back to Rome
Rome
Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...

, presaging the end of the Avignon Papacy
Avignon Papacy
The Avignon Papacy was the period from 1309 to 1376 during which seven Popes resided in Avignon, in modern-day France. This arose from the conflict between the Papacy and the French crown....

. The next year, on September 24, Gregory formally appointed Heredia grand master, following the death of Robert of Juilly on July 27. Heredia embarked from Naples
Naples
Naples is a city in Southern Italy, situated on the country's west coast by the Gulf of Naples. Lying between two notable volcanic regions, Mount Vesuvius and the Phlegraean Fields, it is the capital of the region of Campania and of the province of Naples...

 for Romania
Latin Empire
The Latin Empire or Latin Empire of Constantinople is the name given by historians to the feudal Crusader state founded by the leaders of the Fourth Crusade on lands captured from the Byzantine Empire. It was established after the capture of Constantinople in 1204 and lasted until 1261...

 late in 1377, arriving in Vonitsa
Vonitsa
Vonitsa is a town in the northwestern part of Aetolia-Acarnania in Greece, seat of the municipality of Aktio-Vonitsa. Population 4,081 . The town is situated in the bay overlooking the Ambracian Gulf and has a small forested peninsula, the peninsula and its narrow strait is in the northwest of...

 in April 1378. Heredia immediately set about to take Arta
Arta, Greece
Arta is a city with a rich history in northwestern Greece, capital of the peripheral unit of Arta, which is part of Epirus region. The city was known in ancient times as Ambracia . Arta is famous for its old bridge located over the Arachthos River, situated west of downtown...

 but was captured by Ghin Boua Spata, lord of Aetolia
Aetolia
Aetolia is a mountainous region of Greece on the north coast of the Gulf of Corinth, forming the eastern part of the modern prefecture of Aetolia-Acarnania.-Geography:...

 and Acarnania
Acarnania
Acarnania is a region of west-central Greece that lies along the Ionian Sea, west of Aetolia, with the Achelous River for a boundary, and north of the gulf of Calydon, which is the entrance to the Gulf of Corinth. Today it forms the western part of the prefecture of Aetolia-Acarnania. The capital...

, and sold to the Ottoman Turks
Ottoman Turks
The Ottoman Turks were the Turkish-speaking population of the Ottoman Empire who formed the base of the state's military and ruling classes. Reliable information about the early history of Ottoman Turks is scarce, but they take their Turkish name, Osmanlı , from the house of Osman I The Ottoman...

. He was quickly ransomed, for he was in Glarentsa on 20 May 1379, though during his absence, his commandant, Gaucher of La Bastide, hired the Navarrese Company
Navarrese Company
The Navarrese Company was a company of mercenaries, mostly from Navarre and Gascony, which fought in Greece during the late 14th century and early 15th century, in the twilight of Frankish power in the dwindling remnant of the Latin Empire...

 of mercenaries and brought them to the Principality of Achaea
Principality of Achaea
The Principality of Achaea or of the Morea was one of the three vassal states of the Latin Empire which replaced the Byzantine Empire after the capture of Constantinople during the Fourth Crusade. It became a vassal of the Kingdom of Thessalonica, along with the Duchy of Athens, until Thessalonica...

 for eight months.

After his release, Heredia went to Rhodes
Rhodes
Rhodes is an island in Greece, located in the eastern Aegean Sea. It is the largest of the Dodecanese islands in terms of both land area and population, with a population of 117,007, and also the island group's historical capital. Administratively the island forms a separate municipality within...

, the headquarters of the order, in July. Power was readily ceded to him, as he was an adherent of the Avignonese Pope Clement VII
Pope Clement VII
Clement VII , born Giulio di Giuliano de' Medici, was a cardinal from 1513 to 1523 and was Pope from 1523 to 1534.-Early life:...

. Heredia tried to make a deal to have the Navarrese turn over the castles they were holding in the name of the prince to the military order. The Navarrese' preponderant demands, however, quickly sunk any possible agreement. Heredia ignored the powerful company and instead dealt directly with Marie of Blois, who claimed the principality on behalf of her son Louis II of Naples
Louis II of Naples
Louis II of Anjou was the rival of Ladislaus as King of Naples. He was a member of the House of Valois-Anjou.-Biography:...

. Marie signed over her son's rights to the order on 24 January 1387, with the consent of Clement VII. The transaction cost the order 20,000 gold florins. Later, the pope reversed his endorsement at the request of the Achaean claimant Amadeus, Lord of Pinerolo.

Despite these failures with the Navarrese, Heredia had continued to use them in his war. Though Peter IV had forbid any Hospitallers of his realm to travel with Heredia east, he himself had claimed the rights to the Duchy of Athens
Duchy of Athens
The Duchy of Athens was one of the Crusader States set up in Greece after the conquest of the Byzantine Empire during the Fourth Crusade, encompassing the regions of Attica and Boeotia, and surviving until its conquest by the Ottoman Empire in the 15th century....

. The Navarrese, under Juan de Urtubia
Juan de Urtubia
Juan de Urtubia was a Navarrese royal squire who led first a contingent of fifty men-at-arms on an expedition...

, attacked Thebes
Thebes, Greece
Thebes is a city in Greece, situated to the north of the Cithaeron range, which divides Boeotia from Attica, and on the southern edge of the Boeotian plain. It played an important role in Greek myth, as the site of the stories of Cadmus, Oedipus, Dionysus and others...

, the capital of the duchy, and Heredia, though friendly with the king, was warned in a letter to stop abetting his enemies (10 September 1380).

Life in Avignon

Heredia spent most of his life in Avignon
Avignon
Avignon is a French commune in southeastern France in the départment of the Vaucluse bordered by the left bank of the Rhône river. Of the 94,787 inhabitants of the city on 1 January 2010, 12 000 live in the ancient town centre surrounded by its medieval ramparts.Often referred to as the...

 after 9 April 1382, when he embarked for the West with his powers diminished some by the untrusting convent in Rhodes. In April 1383, the Roman Pope Urban VI
Pope Urban VI
Pope Urban VI , born Bartolomeo Prignano, was Pope from 1378 to 1389.-Biography:Born in Itri, he was a devout monk and learned casuist, trained at Avignon. On March 21, 1364, he was consecrated Archbishop of Acerenza in the Kingdom of Naples...

 appointed Riccardo Caracciolo
Riccardo Caracciolo
Riccardo Caracciolo was an Italian nobleman from the Kingdom of Naples, who was a rival Grand Master of the Knights Hospitaller.-Biography:Caracciolo was born most likely in Naples, in the first half of the 14th century...

, prior of Capua
Capua
Capua is a city and comune in the province of Caserta, Campania, southern Italy, situated 25 km north of Naples, on the northeastern edge of the Campanian plain. Ancient Capua was situated where Santa Maria Capua Vetere is now...

, anti-master in opposition to Heredia. Caracciolo had the support of some Italian priories, of the England
Kingdom of England
The Kingdom of England was, from 927 to 1707, a sovereign state to the northwest of continental Europe. At its height, the Kingdom of England spanned the southern two-thirds of the island of Great Britain and several smaller outlying islands; what today comprises the legal jurisdiction of England...

 and other Urbanist regions, but his power was insignificant by his death in 1395, after which no one was elected to replace him. Heredia did not long survive him and was succeeded by Philibert of Naillac.

Heredia was wealthy and learned, a patron of historiography and translation. It was he who ordered the Chronicle of Morea
Chronicle of Morea
The Chronicle of the Morea is a long 14th-century history text, of which four versions are extant: in French, Greek , Italian and Aragonese. More than 9,000 lines long, the Chronicle narrates events of the Franks' establishment of feudalism in mainland Greece. West European Crusaders settled in...

translated into Aragonese
Aragonese language
Aragonese is a Romance language now spoken in a number of local varieties by between 10,000 and 30,000 people over the valleys of the Aragón River, Sobrarbe and Ribagorza in Aragon, Spain...

 sometime before 1393, though it does not contain any mention of his term of service in the Morea. The medieval stonework of his fortified castles in Mora de Rubielos
Mora de Rubielos
Mora de Rubielos is a municipality located in the mountainous area of the Iberian System, province of Teruel, Aragon, Spain.According to the 2009 census , the municipality has a population of 1,756 inhabitants. Mora de Rubielos has a beautiful 14th century castle. Mora de Rubielos is the capital of...

 and Rubielos de Mora
Rubielos de Mora
Rubielos de Mora is a municipality located in the province of Teruel, Aragon, Spain. According to the 2004 census , the municipality has a population of 652 inhabitants....

 has been much studied in the last few years. He was buried in Caspe
Caspe
Caspe or Casp is a historic town and municipality in the province of Zaragoza, in the autonomous community of Aragon, Spain. It is situated some 100 km to the east of the provincial capital, Zaragoza.-History:...

. His tomb was destroyed by anarchist soldiers during the Spanish Civil War
Spanish Civil War
The Spanish Civil WarAlso known as The Crusade among Nationalists, the Fourth Carlist War among Carlists, and The Rebellion or Uprising among Republicans. was a major conflict fought in Spain from 17 July 1936 to 1 April 1939...

(1936–1939), although some photographs remain.

Sources

  • Setton, Kenneth M. Catalan Domination of Athens 1311–1380. Revised edition. London: Variorum, 1975.
  • Setton, Kenneth M. (general editor) A History of the Crusades: Volume III — The Fourteenth and Fifteenth Centuries. Harry W. Hazard, editor. University of Wisconsin Press: Madison, 1975.
  • Luttrell, Anthony, "Juan Fernandez de Heredia's History of Greece," Byzantine and Modern Greek Studies, 34,1 (2010), 30-37.
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