Duchess of Brittany (b. 1319) September 20 – Louis I, Duke of Anjou (b. 1339) October – Joan Holland, Duchess of Brittany (b. 1350) December 23 – Thomas Preljubović, ruler of Epirus December 31 – John Wycliffe, English theologian, Bible translator and Catholic reform campaigner date unknown John of Fordun, Scottish chronicler Peter of Enghien, Count of Lecce Ruaidri mac Tairdelbach Ó Conchobair, King of Connacht probable – Liubartas, King of Galicia Muhammad Jamaluddin al-Makki al-Amili al-Jizzini known as al-Shahid al-Awwal. Author of Al-Lum'a al-Dimashqiyya (book) (b. ca 1334) References