The only member of the house to have been mentioned is Ser Marwyn Belmore.
Ser Marwyn was made captain of the guard at the Eyrie after the death of Ser Vardis Egen, but was in turn replaced by Ser Lothor Brune when Lord Petyr Baelish married Lady Lysa. The Belmores have been among those houses supporting Bronze Yohn Royce in agitating against Lady Lysa and her refusal to join the war against the Lannisters.