Martin IV was elected unanimously in 1281 - but only after Charles of Anjou forcibly arrested the few cardinals who dissented. Martin was pretty much Charles' creature during the first part of his reign, following his lead in most papal policy. When Charles died in 1282 (in the Sicilian Vespers - that's a good story by itself), Martin had to flee from Rome, and spent the rest of his term - until his death in 1285 - in exile.