Lord Dunalley married, firstly, Maria Trant, daughter of Dominick Trant, in 1802. After his first wife's death in 1819, he married, secondly, Hon. Emily Maude, daughter of Cornwallis Maude, 1st Viscount Hawarden, in 1826. Lord Dunalley died in October 1854, aged 79. Both his marriages were childless and he was succeeded in the barony by his nephew Henry Prittie.
Coat of arms of Henry Prittie, 2nd Baron Dunalley
Crest
A wolf's head erased Or.
Escutcheon
Per pale Argent and Gules three wolves' heads erased Or.
Supporters
Dexter a man in armour Proper holding a tilting spear in the right hand. Sinister a stag Proper attired unguled collared and chained Or.