Tommen Baratheon is a fictional character in the A Song of Ice and Fire series of fantasy novels by American author George R. R. Martin, and its television adaptation Game of Thrones. Introduced in 1996's A Game of Thrones, Tommen Baratheon is the youngest son of Robert Baratheon and Cersei Lannister from the kingdom of Westeros. He subsequently appeared in Martin's A Clash of Kings (1998), A Storm of Swords (2000), A Feast for Crows (2005) and A Dance with Dragons (2011).
https://en.wikipedia.org/wiki/Tommen_Baratheon