Added these notes to profile
https://www.wikitree.com/wiki/Montagu-60
It now seems that Thomas Montagu was descended from the family of Ladde from the hamlet of Hanging Houghton, in the Parish of Lamport, Northamptonshire, England. It was Thomas' father, Richard Ladde, who first used the surname of Montagu in early 1448, but why he assumed that name is unknown.[3]
Thomas married firstly in or before September 1485, Agnes Dudley, daughter of William Dudley, of Clopton, Northamptonshire.[11]
They had the following two sons and possibly a daughter, but there may have been other children:
Edward Montagu, born circa 1487[12] at Brigstock Manor;
John Montagu (often thought to be the elder son[13] but perhaps a younger son[14]);
Daughter (unnamed), married man of Warner family.[15]
Thomas' second wife, whom he married in or before 1512, was Mary Lane, daughter of William Lane, of Finedon.[16] There seems to be no children from this marriage.