« Denotes child of Alice Lynne.
» Denotes child of Alice Grey.

John was born at Southwick, Northamptonshire. He married Alice Lynne c1438. She was born 1415.

Alice Grey was the daughter of Lord Grey of Ruthin.

He took possession of Buckenham Castle on the November 17, 1460.

National Archives (UK)
Reference: HIL/1/10,869X8
Grant by Sir John Knyvet esq. to Edmund de Grey Lord of Hastings, Waysford and Ruthyn and Hugh Boyvyle esq., of the manor and advowson of Hilborough, (February 12, 1451).

Reference: HIL/1/49,869X8
Lease for 20 years by John Knyvet to William Dansethe of all his tenements, lands etc. in Elsworth, Cambs, (November 6, 1461).

Reference: KIM 2L/8
Conveyance (for the life of Laurence Gerard) by Robert Wyngefeld, Kt., and Ann his wife, William Beedwell, senior, Edmund Bokenham, Esq., John Paynot and Laurence Gerard, clerk, to John, Duke of Suffolk, William Hastyngs, Lord de Hastyngs, John Hastyngs, John Knyvet, Esq., John Heydon and William Lombe, of land in Barnham Broom, Colton and Bixton, 7 Edward IV, (April 9, 1467).