The famous Carew family take their name from the place, and still own the castle, although it is leased to the Pembrokeshire Coast National Park, which administers the site.
He married firstly, before 1348, Joan, daughter of Sir John Carew of Carew.
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Historically, the estuary gave seaborne access to castles such as Pembroke and Carew, allowing these to be used as depots in the Norman invasion of Ireland.