Sir John Brereton, Kt. - Several Issues

Consistency Check:
Sir John Brereton, Kt. has pending data conflicts.
William Brereton, 1st Baron Brereton of Leighlin is under 14 years old for his marriage.
Margaret Brereton is under 14 years old for her marriage.
Sir William Brereton born after the death of his mother Margaret Brereton.

I know the marriage ones might be correct and just need to be selected as ignored.