cites this brass rubbing:
From a Brass rubbing of a Placque on the east wall of St. Lawrence's Church Upton Berks (Slough)
Pray for the souls of William Bulstrode and Agnes his wife, daughter of William Nonys of Bray, and for souls of Richard, Robert, Isabella, John, William, Edmund, Agnes, Thomas, Roger, Henry and George, children of the aforesaid William and Agnes, which Agnes the Mother died April 12 AD 1472 and in the 12th year of the reign of King Edward IV the aforesaid William, the Father, being (?) years old.