Reserching my family tree and note Margaret Neville daughter of Edward Neville the 1st Baron of Abergavenry and Catherine Howard, was married to Lord Edward Brooke 6th Lord & 1st Baron of Cobham, having a son John Brooke in 1447 the 7th Lord & 2nd Barron, it would then appear that the same Margaret Neville married her son John Brooke 7th Lord & 2nd Barron, was this the norm for the early to mid 1400s?