" The battle proved a victory—at least in part—and soon after, his grandfather finally died, and Ser Elmo became Lord of Riverrun. But he did not long enjoy his station; he died on the march forty-nine days later, leaving his young son, Ser Kermit, to succeed him. "

― George R.R. Martin , The World of Ice & Fire: The Untold History of Westeros and the Game of Thrones