King Aegon II Targaryen was a ruler of the Targaryen dynasty in the fictional world of Westeros, known for his role in the Dance of the Dragons, a civil war between rival factions of the Targaryen family. He was the son of King Viserys I Targaryen and was known for his ambition and desire to claim the Iron Throne. Aegon II's reign was marked by conflict and strife, as he faced opposition from his half-sister, Princess Rhaenyra Targaryen, who also claimed the throne. His rule ultimately ended in tragedy, leading to significant consequences for the Targaryen lineage and the realm.