Aerys II Targaryen, more commonly remembered as the Mad King, was the seventeenth and final king of the Targaryen dynasty to sit on the Iron Throne of Westeros. Aerys was born to Prince Jaehaerys, the second son of King Aegon V. Whilst still a teenager, Aerys was married to his sister Rhaella in the Targaryen tradition. Rhaella became pregnant and gave birth to their son Rhaegar in 259 AL in the Targaryen summer palace at Summerhall.