Daeron I Targaryen, King of the Seven Kingdoms
From Asoiaf
Daeron I of House Targaryen, King of the Seven Kingdoms (reigned 157 Al - 161 AL), called the Young Dragon and the Boy King, was the oldest son of Aegon III Targaryen, King of the Seven Kingdoms.
Daeron succeeded his father on the throne. He conquered Dorne, but could not keep it. He died young.
On Daeron's death his younger brother Baelor I became king.
