Niccolò Albergati was an Italian Carthusian and a prelate of the Roman Catholic Church. He was appointed cardinal and served as a papal diplomat to France and England (1422–23) in addition to serving as the bishop of Bologna from 1417 until his death.

The Congress of Arras was a diplomatic congregation established at Arras in the summer of 1435 during the Hundred Years' War, between representatives of England, France and Burgundy. It was the first negotiation since the Treaty of Troyes and replaced the fifteen-year agreement between Burgundy and England that would have seen the dynasty of Henry V inherit the French crown. Historian Richard Vaughan has called it "Europe's first real peace congress."