Prince Doran: King Tommen insists on his sister's return to the capital.
Jaime: I'm afraid he does.
Prince Doran: I can not disobey my king's command. She will return with you to King's Landing and my son, Prince Trystane will accompany you both. If the alliance between the Iron Throne and Dorne is to continue, their engagement must stand.
Jaime: I accept.