Damon Lannister (son of Jason)
|Born||In 244 ᴀᴄ or 245 ᴀᴄ|
|Book(s)||The World of Ice & Fire (mentioned)|
Damon is the only son of Ser Jason by his first wife, Alys Stackspear. Alys died giving birth to Damon. Damon himself is married to a Lannister cousin of unknown relations, Ella Lannister, and has one son by her, Ser Damion. Through Damion's marriage to Shiera Crakehall. Damon is the grandfather of Lucion and Lanna Lannister.
It is currently unknown whether Damon is still alive in the main series.