Boniface VIII

Pope Boniface VIII (Latin: Bonifacius PP. VIII, Italian: Bonifacio VIII; born Benedetto Caetani; c. 1230 – 11 October 1303) was head of the Catholic Church and leader of the Papal States from 24 December 1294 until his death in 1303. The Caetani family was of baronial origin with connections to the papacy. He succeeded Pope Celestine V, who had abdicated from the papal throne. Boniface spent his early pontificate abroad in diplomatic roles.

Boniface VIII put forward some of the strongest claims of any pope to temporal as well as spiritual power. He involved himself often with foreign affairs, including in France, Sicily, Italy, and the First War of Scottish Independence. These views, and his chronic intervention in temporal affairs, led to many bitter quarrels with Albert I of Germany, Philip IV of France, and later Dante Alighieri, who expected the pope to soon arrive at the eighth circle of Hell in his Divine Comedy, among the simoniacs.

Boniface systematized canon law by collecting it in a new volume, the Liber Sextus (1298), which continues to be important source material for canon lawyers. He established the first Catholic jubilee year to take place in Rome. Boniface had first entered into conflict with King Philip IV in 1296 when the latter sought to reinforce the nascent nation state by imposing taxes on the clergy and barring them from administration of the law. Boniface excommunicated Philip and all others who prevented French clergy from traveling to the Holy See, after which the king sent his troops to attack the pope's residence in Anagni on 7 September 1303 and capture him. Boniface was held for three days. He died a month afterwards.

King Philip IV pressured Pope Clement V of the Avignon Papacy into staging a posthumous trial of Boniface. He was accused of heresy, but no verdict against him was delivered.