Geoffrey de Camville of Llansteffan

https://thesignsofthetimes.com.au/34/60899.htm

Geoffrey was son and heir of William de Canville, by Auberee (living 1233), daughter and heir of Geoffrey Marmion, of Clifton, and of Arrow, co. Warwick. Auberee and her husband are stated by Dugdale and others to be the parents - instead of the great-grandparents - of the Geoffrey in the text. [Complete Peerage III:3 note (d)]

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https://en.wikipedia.org/wiki/Baron_Marmion

Welsh feudal barony of Llanstephan
A second barony was obtained by Roger Marmion, lord of the manor of Fontenay-le-Marmion during the Norman invasion of Wales when he was rewarded with the Barony of Llanstephan, whose caput at Llansteffan Castle played a central role in the Welsh wars.