Death of Saint Godfrey, Bishop of Amiens, France. This former abbot fought ceaselessly against simony and corruption and, because of his crusade and piety, created many enemies among the liberals who sought their own agenda. Godfrey died on this day on a visit to his metropolitan in Soissons.
Pope Martin IV, because of the unyielding influence of France and Sicily's King Charles, wrongly excommunicates King Pedro III of Aragon, over the infamous "Sicilian Vespers" when the islanders of Siciliy rebelled against the French. This was Charles' retaliation trump card with the Pope being the man caught in the middle due to his lack of political judgment and blind dependence on France's monarch.
The Family de Medici become rulers of Florence. They would have a tremendous political impact on Rome and future Popes, some coming from the family itself, and would foster the arts in Renaissance Italy.
Death of Blessed Catherine McAuley, founder of the Sisters of Mercy, who opened the first house outside of Dublin Ireland. It would become the largest order of nuns in the English-speaking world with nearly 1,500 convents today.