Her hand lashed out, knocking the wine cup from his hand to spill on the floor. "Brother or no, I should have your tongue out for that. I am Joffrey's regent, not you, and I say that Myrcella will not be shipped off to this Dornishman the way I was shipped to Robert Baratheon."
"The Martells have every cause to hate us. Nonetheless, I expect them to agree. Prince Doran's grievance against House Lannister goes back only a generation, but the Dornishmen have warred against Storm's End and Highgarden for a thousand years, and Renly has taken Dorne's allegiance for granted. Myrcella is nine, Trystane Martell eleven. I have proposed they wed when she reaches her fourteenth year. Until such time, she would be an honored guest at Sunspear, under Prince Doran's protection."