Art Óg Mac Murchadha Caomhánach.

About Art Óg Mac Murchadha Caomhánach

Art Óg Mac Murchadha Caomhánach was an Irish king who is generally regarded as the most formidable of the later kings of Leinster. He revived not only the royal family's prerogatives, but also their lands and power. During his 42-year reign, he dominated the Anglo-Norman settlers of Leinster. His dominance of the province and its inhabitants, both Gaelic and Hiberno-Norman, was deemed sufficiently detrimental to the colony that Richard II of England spent much of the years 1394 and 1395 sparring with him. While MacMurrough-Kavanagh did eventually submit to Richard, he renounced this fealty on Richard's departure and made much of his kingdom a death trap for any invading English or Anglo-Irish forces. The Crown accordingly dealt with him cautiously and he was granted an amnesty in 1409.