Prince Baelor Targaryen
Baelor, known as "Breakspear", was born in 0170. He died due to murder / assassination, Accidentally killed by his brother, Maekar, in Trial of Knights, at the age of 39 in 0209.
King "Lamprey" Targaryen I
"Lamprey" was born in 0173. He died due to murder / assassination, One year after his son, fighting a Lord, at the age of 60 in 0233.