|Title|| Lord Paramount of the Trident|
Lord of Riverrun
|Allegiance|| House Tully|
|Died||In 130 AC|
|Book(s)||The World of Ice and Fire (mentioned)|
Lord Grover supported Prince Viserys Targaryen instead of Laenor Velaryon at the Great Council in 101 AC. He wanted to support King Aegon II Targaryen and the greens during the Dance of the Dragons, but he was too aged and his grandson, Ser Elmo Tully, kept the Tully banners at Riverrun. Elmo instead later supported Aegon's rival, Queen Rhaenyra Targaryen. Grover passed away soon after the Second Battle of Tumbleton and he was succeeded by Elmo.