House of Montgomery
House Montgomery of Braidstone
Lords of Braidstone
Viscounts Montgomery of Great Ards
Earls of Mount Alexander
Issued from Robert, younger brother of Alexander Montgomery, 2nd Lord MontgomeryHouse of Seton-Montgomery
Lords Montgomery
Barons Ardrossan
Barons Seton and Tranent
Earls of Eglinton and Winton
Matrilineal branch