He is married to Maud de Lacy.
They got married in the year 1238 at Christchurch, Hampshire, England
, he was 15 years old.Child(ren):
Richard de Clare was a leading member of the reforming party of barons in England. King Henry III's personal style of government and his reliance on foreign advisers had antagonized many of the barons who regarded the royal policy as diminishing their own power and influence. Llywelyn ap Gruffydd (d.1282), prince of Gwynedd, exploited this division and dissension amongst the English. On Richard's death in 1262, Llywelyn moved up the Usk valley, capturing the Brecon lands of Humphrey de Bohun (guardian of the young de Clare heir), and reaching the northern edge of Glamorgan. By 1267 Llywelyn had become master of the greater part of modern Wales, except for the southern coastal plain.
http://www.castlewales.com/clare.html
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