Margaret St Maur

Not the wife of William Bampfield

William Bampfield

https://en.wikipedia.org/wiki/Manor_of_Poltimore

William Bampfield (uncle, second son of Sir William Bampfield (died 1474)) of Poltimore). He married twice:

• Firstly to Margaret St Maur, a daughter and co-heiress of John St Maur of Rode, and heir to her niece Mary Drury.
• Secondly to Margaret Kirkham, daughter of Nicholas Kirkham (1433–1516) of Blagdon in the parish of Paignton in Devon, and widow of John Cheyne of Pinhoe. She survived her husband and remarried to a Grenville of Stowe, Kilkhampton in Cornwall and of Bideford in Devon.[25]