diplomat and scholar (b. 1338) May 17 – Zhu Biao, Crown Prince of Ming Dynasty, China (b. 1355) November 22 – Robert de Vere, Duke of Ireland (b. 1362) December 23 – Isabella of Castile, Duchess of York (b. 1355) date unknown Abbot Methodius of Peshnosha, Eastern Orthodox saint Lalleshwari, Kashmiri poet and mystic (b. 1320) Jeong Mong-ju, Goryeo diplomat and poet (b. 1337) References