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 by | Robert de Juilly |
| Succeeded by | Riccardo Caracciolo Philibert de Naillac |
| Personal details | |
| Born | c. 1310 |
| Died | 1396 (aged 85–86) |
| Profession | Grandmaster 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.