Feb 20 Conan IV, Duke of Brittany (b. 1138) May 1 Dermot MacMurrough, last Irish King of Leinster, dies Jun 9 Jacob Ben Meir, [Rabbenu Tam], French Tosofist, dies Aug 11 Louis I, Earl of Wage/Rieneck, dies Nov 2 Baudouin IV, count of Henegouwen (1120-71), dies Nov 2 Dionysius [Jacob] Bar-Salibi, Syriac Orthodox Church author (Diarbekir), dies Nov 8 Baldwin IV, Count of Hainaut (b. 1108) Share On Facebook Share On Twitter 1170 Famous Deaths by Year 1172