content: 
  ===Staging and props===
  The scene in which Daenerys has to eat a horse's heart was filmed in The Paint Hall studio in Belfast. There, the production built the Dothraki temple in which the scene is set – a large semicircular structure of wood and woven reeds, inspired by Marsh Arab constructions. The heart actress Emilia Clarke ate was, according to Weiss, "basically a giant, three-pound gummi bear covered in fake sugar blood – which has the added attraction of drawing real flies." Through repeated takes, Clarke did have to eat much of the sugary heart. She said that it tasted of bleach and was made tough and gristly by the addition of valves made from "something like dried pasta." Clarke did not have to act in the shots at the end of the scene in which Daenerys almost throws up the last bit of heart, as she was indeed close to vomiting at that point.
  The book of lineages that helps Ned realize the truth about Joffrey's father was prepared by Bryan Cogman, who in addition to writing episode four ("Cripples, Bastards, and Broken Things") also served as the show's "lore master" and authored the background content concerning the history of Westeros that is to be included in the first season's DVD and Blu-ray release. Cogman wrote two pages' worth of text detailing the lineage of four noble houses. The text concerning house Umber was shown in episode four, and the Baratheon text appears in episode six. Cogman also wrote text for the houses of Targaryen and Royce, but the corresponding scenes were removed from the final script for "Cripples, Bastards, and Broken Things" but the Targaryen page was shown in "A Golden Crown". Cogman said that he drew on the novels and the fan-created website ''Wiki of Ice and Fire'' for reference, and invented what could not be sourced, including even some Internet fan message board names as in-jokes.