Richard de Masnilwaren was ancestor of William Manwaring, of Over Peover, who wedded, first, (in 1366), Catherine, daughter of John Belgrave, of Belgrave in Cheshire, and secondly, Clementia Cotton, but had no issue. He d. in 1399 was was s. by his half-brother, John Manwaring, of Over Peover, who m. about 13 Richard II [1390] Margaret, daughter and heir of Sir John Stafford, of Wigham, and widow of Sir John Warren, of Pointon, in Cheshire, but had no issue by her. John d. in 1410, and was s. by his brother, Randle Manwaring, of Over Peover, who m. Margery, widow of Richard Buckley, of Chedhill, in Cheshire, and daughter of Hugh Venables, Baron of Kinderton. [John Burke, Extinct and Dormant Baronetcies of England, Ireland, and Scotland, 2nd Edition, Scott, Webster, and Geary, London, 1841, p. 334]
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Ranulphus was succeeded by his son, Richard de Mesnilwaren, whose great grandson, Sir Raufe Manwaringe, kt. was justice of Chester, (temp. Richard I). Sir Raufe married Amicia, daughter of Hugh Kyvelioc, Earl Palatine of Cheshire. [John Burke, History of the Commoners of Great Britain and Ireland, R. Bentley, London, 1834-1838, p. 590, Mainwaring, of Whitmore]