Juan Fernández de Heredia

Juan Fernández de Heredia
Heredia as portrayed in his Grant Cronica de Espanya
Grand Master of the Order of Saint John
In office
1376–1396
Preceded byRobert de Juilly
Succeeded byRiccardo Caracciolo
Philibert de Naillac
Personal details
Bornc. 1310
Died1396 (aged 85–86)
ProfessionGrandmaster of the Knights of St. John
Military service
Allegiance Order of Saint John
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Juan Fernández de Heredia (in Aragonese Johan Ferrández d'Heredia, pronounced Aragonese pronunciation: [ˈtʃwan feˈrand̪eθ deˈɾedʝa]; c. 1310 – 1396) was a knight from the Crown of Aragon who served as Grand Master of the Knights Hospitaller from 24 September 1377 to his death. His tenure was occupied by the "affair of Achaea", the persistent, but ultimately fruitless, efforts by the Knights to acquire the Principality of Achaea in southern Greece. He was also a great patron of the translation and composition of historiographical works in the Aragonese language and a counsellor to two Kings of Aragon.