Henry IV Plantagenet of the Triple Monarchy of England-Castille-Portugal was born in 1539 as the son of Edward VI and his wife, a Castillian noblewoman. He was a quite gifted Plantagenet king. Early in his reign, he declared the second Occidental-Seljuk War, acquiring the Marches, Algiers, Tunis and Sicily 1565 in the Peace of Ostia. He had South Atlantis explored, where he founded the colonies of Braseal and Argentine. Henry IV died in 1582, to be succeeded by his son Henry V.