Prince Aegon Targaryen

From Asoiaf

Prince Aegon of House Targaryen was the son and second child of Prince Rhaegar Targaryen and Princess Elia of House Martell.

283 AL Rhaegar was slain by Robert Baratheon on the Trident.

The Sack of King's Landing by Tywin Lannister, Lord of Casterly Rock and Eddard Stark, Lord of Winterfell. Aegon was ripped from the breats of his mother and killed before her eyes.