Leon Trotsky | Horatio Nelson, 1st Viscount Nelson | Viscount | León | Vickers Viscount | Bernard Montgomery, 1st Viscount Montgomery of Alamein | Kings of Leon | Nuevo León | William Howe, 5th Viscount Howe | Leon Russell | viscount | León, Guanajuato | Jean-Léon Gérôme | Kingdom of León | Garnet Wolseley, 1st Viscount Wolseley | Leon | Charles Lyttelton, 10th Viscount Cobham | William Slim, 1st Viscount Slim | Saint-Pol-de-Léon | Leon René | Leon Lai | Léon Blum | Edmund Allenby, 1st Viscount Allenby | William Lamb, 2nd Viscount Melbourne | Leon Redbone | León, Nicaragua | Julian Byng, 1st Viscount Byng of Vimy | Angelu de Leon | Alan Brooke, 1st Viscount Alanbrooke | William Waldorf Astor, 1st Viscount Astor |
He was the third son of Eudon I de Porhoët, viscount of Porhoët, and Emma de Léon (daughter of Guyomarch II, Viscount de Léon).