TDIH - January 29 This Day in (Medieval) History: January 29 661 – Death of Ali, cousin and son-in-law of the Prophet Muhammad. 870 – Death of Salih ibn Wasif, Muslim commander. 904 – Sergius III became Pope to replace the deposed Christopher. 946 – Abbassid Caliph Al-Mustakfi was deposed by Mu'izz al-Dawla, Emir of the Buyid Empire, and replaced by Al-Muti. 1119 – Death of Pope Gelasius II. 1258 – Battle of Dong Bo Dau : Forces from Dai Viet defeated a Mongol army and forced them to retreat from the region. 1327 – Death of Adolf, Count Palatine of the Rhine. 1455 – Birth of Johann Reuchlin, humanist scholar. 1465 – Death of Louis, Duke of Savoy. 1475 – Birth of Giuliano Bugiardini, Italian painter. 1499 – Birth of Katharina von Bora, who later became the wife of Martin Luther.