John de Grey, 1st Baron Grey of Rotherfield was born circa 1271 to Robert de Grey (c1246-c1295) and Joan de Valoines (c1250-c1312) and died 17 October 1311 of unspecified causes. Notable ancestors include Charlemagne (747-814), Alfred the Great (849-899). Ancestors are from England, France, the Netherlands, Germany, Belgium, the United Kingdom.

A general and heraldic dictionary of the peerages of England, Ireland, and Scotland, extinct, dormant, and in abeyance. England by John Burke

"John de Grey, then twenty-four years of age (1294), who, soon after his doing homage, had livery of his inheritance; and in the 25th Edward I. had summons to the parliament, then held at Westminster, as a Baron. This nobleman appears to have taken part in the Scottis wars of Edward I. His lordship m. Margaret, daughter and co-heiress of William de Odingsells, of Maxtock, in the county of Warwick, and dying in 5th Edward II., was s. by his son,"


Offspring of John Grey and Margaret de Odingsells (?-1323)
Name Birth Death Joined with
Joan de Grey (1291-1338)
John de Grey, 2nd Baron Grey of Rotherfield (1300-1359) 9 October 1300 1 September 1359 Catherine FitzAlan (c1300-c1328)
Avice Marmion



Offspring of Robert Grey and Joan de Valoines (c1250-c1312)
Name Birth Death Joined with
John de Grey, 1st Baron Grey of Rotherfield (c1271-1311) 1271 17 October 1311 Margaret de Odingsells (?-1323)

Margaret de Grey (c1272-c1311)
Thomas de Grey (c1276-1312) 1276 1312


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