Overview
Warin de Munchensy was an Anglo-Norman nobleman in 12th-century England.
Warin was the younger son of Hubert de Munchensy, lord of Edwardstone in Suffolk. It is not clear who his mother was as his father married twice—first to a woman who was possibly an heiress to Godric, the dapifer of Henry I of England and second to Muriel, daughter of Piers de Valoignes.
Around 1151 Warin witnessed the foundation charter of Old Buckenham Priory with his brother Hubert.
Warin married Agnes, daughter of Pain fitzJohn and his wife Sybil. Through his wife, Warin inherited lands previously held by the de Lacy and Talbot families, and these lands were considered by George Cokayne as the barony of Munchensy. I. J. Sanders, in his work on English feudal baronies argues that it was a probable barony, and names it as the barony of Swanscombe, centered on Swanscombe in Kent.
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