"The chair behind the table was old black oak, with cushions of blanched cowhide, the leather worn thin. Worn by the bony arse of Barristan the Bold and Ser Gerold Hightower before him, by Prince Aemon the Dragonknight, Ser Ryam Redwyne, and the Demon of Darry, by Ser Duncan the Tall and the Pale Griffin Alyn Connington. How could the Kingslayer belong in such exalted company?"
Afaik Red Keep was redone 2017. This block could now be replaced by Mance's Camp Tent Slab or a stool block