5 events the sources record for this year, grouped by region.
What happened
Western Europe (4)
In Lent at Montgomery, English troops killed more than 300 Welshmen. The castellan pretended to retreat in fear and set an ambush behind them. (Chronica Majora of Matthew Paris part_07 L2321)
When the summons to the council reached the bishops, many prepared to set out. Some stayed behind citing the king's business, and the sick and the old also stayed. (Chronica Majora of Matthew Paris part_07 L2691)
Philip took office as Archbishop of Lyon at about the same time (the sentence is cut off, so the passage on the pope's favor is missing). (Chronica Majora of Matthew Paris part_07 L3499)
On hearing of the death of the Count of Provence, the English king gave alms and prayers, after the count's will. (Chronica Majora of Matthew Paris lines 3465-3469)
Eastern Europe & Russia (1)
Lithuania plunders Torzhok and Bezhitsa and is defeated below Toropets. (Novgorod First Chronicle litopys 기사 1245년)