TDIH - February 10 This Day in (Medieval) History: February 10 547 – Saint Scholastica, nun and sister of St. Benedict. 1127 – Duke William IX of Aquitaine. 1163 – King Baldwin III of Jerusalem. 1242 – Saint Verdiana, anchoress. 1258 – A Mongol army captured Baghdad. 1280 – Margaret II, Countess of Flanders and Hainault, daughter of Count Baldwin IX of Flanders. 1306 – John Comyn of Badenoch was assasinated by Robert the Bruce, Earl of Carrick, which placed the latter as King of Scotland and set off the Wars of Scottish Independence against England. 1346 – Blessed Clare of Rimini, nun. 1355 – The St Scholastica Day riot began at Oxford, England. 1486 – Birth of George of the Palatinate, Bishop of Speyer. 1471 – Frederick II, Margrave of Brandenburg. 1499 – Birth of Thomas Platter, author.