House of LucyLords of Diss, Stowe,Ongar Castle and LucéAncient arms
House of LucyLords of Copeland,Cockermouth and Egremont
House Lucy of NewingtonLords of Newington and DarlingtonIssued from Walter, younger son of Adrian, lord of Lucé
House Lucy of CharlecoteLords of CharlecoteMatrilineal branch
Geoffrey de LucyBishop of WestminsterAttributed arms inHolland's Roll, c.1310
Geoffrey de LucyLord of NewingtonArms in Glover Roll, c.1255
Amaury de LucyLord of Luton and Knapwell
Thomas de Multondit de LucyLord of LangleyArms in Parliamentary Roll, c.1312
Thomas de LucyArms in 2nd Dunstable Roll, c.1334