On the book, we learn about Grover Tully, the head of House Tully, as well as his grandson Elmo Tully. Elmo has two sons: Kermit and Oscar Tully. House of the Dragon seems to have cut out Elmo.

Who are the most powerful characters in House of the ... "Lord Tully is their Lord Paramount," she says. "Without him they will never raise their banners as one." "Then I can do nothing," responds ...

HBO's House of The Dragon shows that the Riverlands are continuously caught in a conflict, the latest of which is the Targaryen civil war. There are many houses in the Riverlands, and because they ...