Martin IV,d. 1285, pope (1281–85), a Frenchman named Simon de Brie; successor of Nicholas III. He was chancellor under Louis IX of France and was created cardinal by Urban IV. He was thus a supporter of the AngevinAngevin
[Fr.,=of Anjou], name of two medieval dynasties originating in France. The first ruled over parts of France and over Jerusalem and England; the second ruled over parts of France and over Naples, Hungary, and Poland, with a claim to Jerusalem.
..... Click the link for more information. dynasty in S Italy and Sicily. In supporting the design of Charles of Anjou (see Charles ICharles I
(Charles of Anjou), 1227–85, king of Naples and Sicily (1266–85), count of Anjou and Provence, youngest brother of King Louis IX of France. He took part in Louis's crusades to Egypt (1248) and Tunisia (1270).
..... Click the link for more information. ) to restore the Latin Empire of Constantinople, and in his excommunication of Byzantine Emperor Michael VIIIMichael VIII
(Michael Palaeologus), c.1225–1282, Byzantine emperor (1261–82), first of the Palaeologus dynasty. Following the murder of the regent for Emperor John IV of Nicaea, he was appointed (1258) regent and, soon afterward (1259), coemperor.
..... Click the link for more information. , Martin sacrificed (1281) the recent union of East and West made at Lyons (1274). After the revolt known as the Sicilian VespersSicilian Vespers,
in Italian history, name given the rebellion staged by the Sicilians against the Angevin French domination of Sicily; the rebellion broke out at Palermo at the start of Vespers on Easter Monday, Mar. 30, 1282.
..... Click the link for more information. he turned all his powers against Peter IIIPeter III
(Peter the Great), 1239?–1285, king of Aragón and count of Barcelona (1276–85) and king of Sicily (1282–85); son and successor of James I. In 1280 he established Aragonese influence on the northern shores of Africa.
..... Click the link for more information. of Aragón. Martin adopted the title Martin IV because it was believed then that the two popes named Marinus were named Martin. He is actually only the second pope named Martin. He was succeeded by Honorius IV.