Seti II
His mother is known to be Queen Takhat, but who she is exactly is a matter of interpretation complicated by inscriptions being revised by Seti II and Amenmesse. Among her titles are "King's Daughter", which would make her a daughter of Merenptah or Ramesses II or possibly a granddaughter of Ramesses. The name Takhat appears in a list of princesses dated to Year 53 of Ramesses II (Louvre 666). If this is the same Takhat, she would be about the same age as Seti II.