Johannes de Galonifontibus was a Dominican

Dominican Order

The Order of Preachers , after the 15th century more commonly known as the Dominican Order or Dominicans, is a Catholic religious order founded by Saint Dominic and approved by Pope Honorius III on 22 December 1216 in France...

 monk who was nominated Bishop of Nakhchivān in Persia in March 1377. In August 1398, Johannes was made Archbishop of Sultaniya

Soltaniyeh

Soltaniyeh is a city in and capital of Soltaniyeh District of Abhar County, Zanjan Province, Iran. At the 2006 census, its population was 5,684, in 1,649 families. Soltaniyeh, located some to the north-west of Tehran, used to be the capital of Mongol Ilkhanid rulers of Persia in the 14th century....

, hence his other name, Jean of Sultaniya.

In 1402, after his victory over the Ottoman Turks

Ottoman Empire

The Ottoman EmpireIt was usually referred to as the "Ottoman Empire", the "Turkish Empire", the "Ottoman Caliphate" or more commonly "Turkey" by its contemporaries...

 at the Battle of Ankara

Battle of Ankara

The Battle of Ankara or Battle of Angora, fought on July 20, 1402, took place at the field of Çubuk between the forces of the Ottoman sultan Bayezid I and the Turko-Mongol forces of Timur, ruler of the Timurid Empire. The battle was a major victory for Timur, and it led to a period of crisis for...

, Timur

Timur

Timur , historically known as Tamerlane in English , was a 14th-century conqueror of West, South and Central Asia, and the founder of the Timurid dynasty in Central Asia, and great-great-grandfather of Babur, the founder of the Mughal Dynasty, which survived as the Mughal Empire in India until...

 sent Johannes on an embassy to European courts, namely, Venice

Venice

Venice is a city in northern Italy which is renowned for the beauty of its setting, its architecture and its artworks. It is the capital of the Veneto region...

, Genoa

Genoa

Genoa |Ligurian]] Zena ; Latin and, archaically, English Genua) is a city and an important seaport in northern Italy, the capital of the Province of Genoa and of the region of Liguria....

, London

London

London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

 and Paris

Paris

Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

, to announce his victory. Timur proposed treaties to facilitate commercial exchanges between Europeans powers and his realm. Henry IV of England

Henry IV of England

Henry IV was King of England and Lord of Ireland . He was the ninth King of England of the House of Plantagenet and also asserted his grandfather's claim to the title King of France. He was born at Bolingbroke Castle in Lincolnshire, hence his other name, Henry Bolingbroke...

 and Charles VI of France

Charles VI of France

Charles VI , called the Beloved and the Mad , was the King of France from 1380 to 1422, as a member of the House of Valois. His bouts with madness, which seem to have begun in 1392, led to quarrels among the French royal family, which were exploited by the neighbouring powers of England and Burgundy...

 replied by congratulating Timur.

After his mission, Johannes returned to Sultaniya, until he was transferred to Crimea

Crimea

Crimea , or the Autonomous Republic of Crimea , is a sub-national unit, an autonomous republic, of Ukraine. It is located on the northern coast of the Black Sea, occupying a peninsula of the same name...

in 1423.