March 21 – Ibn Sab'in, Andalusian philosopher and mystic April 17 – Isabella of France, queen of Navarre (b. 1241) July 1 – Bartholomew of Braganca, Italian friar and bishop July 28 – Walter de Burgh (or Bourke), Norman nobleman August 21 – Alphonse, son of Louis VIII (the Lion) (b. 1220) August 25 – Joan of Toulouse, French noblewoman (b. 1220) September 1 – Annibaldo degli Annibaldi, Italian theologian September 9 – Yaroslav III, Kievan Grand Prince (b. 1230) October 17 – Steinvör Sighvatsdóttir, Icelandic female poet October 19 – Philip Basset, English chief justiciar (b. 1185) Al-Mansur al-Hasan, Yemeni imam and politician (b. 1199) Arnaldo de Peralta, Aragonese archbishop and statesman Constantine Palaiologos, Byzantine nobleman and co-ruler Ghiyas-ud-din Baraq, Mongol ruler of the Chagatai Khanate Haji Bektash Veli, Persian philosopher and mystic (b. 1209) Henry of Segusio, Italian jurist and cardinal-bishop (b. 1200) Lauretta of Saarbrücken, German noblewoman and regent Maria of Chernigov, Kievan princess and regent (b. 1212) Richard de Grey, English nobleman, constable and knight Roger de Leybourne, English nobleman and High Sheriff Stephen the Posthumous, Hungarian pretender (b. 1236) Vardan Areveltsi, Armenian historian and writer (b. 1198) References