Marie de Coucy
Alexander II died on 8 July 1249 during an expedition against the Lord of Argyll on the island of Kerrera. Immediately after the news reached her, Marie made sure her 8-year-old son was crowned as soon as possible at Scone. Although her son was a minor and was placed under regency, Marie did not become regent. On 9 June 1250 Marie and her son Alexander III were present in Dunfermline for the observance of the canonisation of Saint Margaret of Scotland and the transference of her remains to the new shrine.
Assassination of Alexander II of Russia
As he was known to do every Sunday for many years, the emperor went to the Mikhailovsky Manège for the military roll call. He travelled both to and from the "Manège" in a closed carriage accompanied by five Cossacks and Frank (Franciszek) Joseph Jackowski, a Polish noble, with a sixth Cossack sitting on the coachman's left. The emperor's carriage was followed by two sleighs carrying, among others, the chief of police and the chief of the emperor's guards. The route, as always, was via the Catherine Canal and over the Pevchesky Bridge.