The Peter IV of Aragon reference article from the English Wikipedia on 24-Apr-2004
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Peter IV of Aragon

Helping orphans the way you would do it
Peter IV of Aragon (1319-1387), king of Aragon (1336-1387), the Ceremonious or el del punyalet (the one of the little dagger). He deposed the kings of Majorca and rejoined the Balearic Islands and Roussillon under the crown of Aragon. He wrote the Chronicle of his name.

Preceded by:
Alfonso IV of Aragon
List of Aragonese monarchs Followed by:
John I of Aragon