Guy IV was the Duke of Spoleto and Camerino from 889 and Prince of Benevento from 895. He was the son of Guy II of Spoleto

Guy II of Spoleto

Guy II was the eldest son and successor of Lambert I as Duke of Spoleto and Margrave of Camerino. He was elected to succeed to these titles on his father's death in 880. He had an ambitious plan of expansion to the south and to the west that conflicted with the Papacy.He received a papal letter...

.

In either 888, when his father was crowned King of France, or 889, when his father was crowned King of Italy

King of Italy

King of Italy is a title adopted by many rulers of the Italian peninsula after the fall of the Roman Empire...

, Guy was granted the Duchies of Spoleto and Camerino

Duchy of Spoleto

The independent Duchy of Spoleto was a Lombard territory founded about 570 in central Italy by the Lombard dux Faroald.- Lombards :The Lombards, a Germanic people, had invaded Italy in 568 and conquered much of it, establishing a Kingdom divided between several dukes dependent on the King, who had...

. Though his father never secured the French kingdom, he did maintain his Italian crown and thus happily divested himself of his responsibilities in Spoleto itself, the hereditary possession of his family. Guy was a capable warrior and leader. He conquered Benevento

Benevento

Benevento is a town and comune of Campania, Italy, capital of the province of Benevento, 50 km northeast of Naples. It is situated on a hill 130 m above sea-level at the confluence of the Calore Irpino and Sabato...

 from the Greeks and made himself prince there (895). He offered the regency

Regent

A regent, from the Latin regens "one who reigns", is a person selected to act as head of state because the ruler is a minor, not present, or debilitated. Currently there are only two ruling Regencies in the world, sovereign Liechtenstein and the Malaysian constitutive state of Terengganu...

 of his conquered principality to Guaimar I of Salerno

Guaimar I of Salerno

Guaimar I was the prince of Salerno from 880, when his father entered the monastery of Monte Cassino in August. His parents were Prince Guaifer and Landelaica, daughter of Lando I of Capua...

, the husband of his sister Itta, but Guaimar was captured en route to Benevento by Adelfer, the gastald

Gastald

A gastald was a Lombard official in charge of some portion of the royal demesne with civil, martial, and judicial powers. By the Edictum Rothari of 643, the gastalds were given the civil authority in the cities and the reeves the like authority in the countryside...

 of Avellino

Avellino

Avellino is a town and comune, capital of the province of Avellino in the Campania region of southern Italy. It is situated in a plain surrounded by mountains 42 km north-east of Naples and is an important hub on the road from Salerno to Benevento.-History:Before the Roman conquest, the...

. Guy had to go down and besiege Avellino to get his release.

After reigning in Benevento for a year and eight months, Guy travelled 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...

 to meet the Emperor Lambert

Lambert II of Spoleto

Lambert II was the King of Italy from 891, Holy Roman Emperor, co-ruling with his father from 892, and Duke of Spoleto and Camerino from his father's death in 894. He was the son of Guy III of Spoleto and Ageltrude, born in San Rufino...

. He was murdered on the Tiber

Tiber

The Tiber is the third-longest river in Italy, rising in the Apennine Mountains in Emilia-Romagna and flowing through Umbria and Lazio to the Tyrrhenian Sea. It drains a basin estimated at...

 by agents of Alberic

Alberic I of Spoleto

Alberic I was the Lombard duke of Spoleto from between 896 and 900 until 920, 922, or thereabouts. He first appears as a page to Guy III of Spoleto at the Battle on the Trebbia in 889 He may have later been the count of Fermo or margrave of Camerino, but whatever the case, he succeeded to Spoleto...

, who seized Spoleto and set himself up as duke.

Sources

• Caravale, Mario (ed). Dizionario Biografico degli Italiani: LX Grosso – Guglielmo da Forlì. 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...
  
  , 2003.
• Caravale, Mario (ed). Dizionario Biografico degli Italiani: LXI Guglielmo Gonzaga – Javobini. 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...
  
  , 2003.
• Lexikon des Mittelalters: Wido IV. Herzog von Spoleto (882/83-897).

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