Unión Aragonesa

…nobles and some municipalities, the Unión Aragonesa, forced him to grant a privilege not only confirming the Aragonese fueros (legal rights) but diminishing some of the crown’s rights. In 1285 Philip III of France invaded Aragon to dethrone Peter but was disastrously defeated. Peter, however, soon died. His great stature…

…defeating the armies of the Unión Aragonesa at Epila (1348), thereafter displaying the extreme vindictiveness that he always showed when his authority was challenged. Peter had to contend with revolt in Sardinia throughout his reign; but he succeeded, by political and military means, in preparing the future reunion of Sicily…