Leslie Stephen,
Dictionary of National Biography…
(1898)
“ He married, first, Thomasine, daughter of Sir Robert Darcy of Danbury, Essex, by whom he had a daughter Elizabeth, who married George Heneage; secondly, Mary, daughter of Thomas Darcy, also of Danbury Essex, by whom he had had two illegitimate sons in the lifetime of his first wife, namely, Richard Southwell of Horsham St. Faith's, Norfolk, and Thomas Southwell of Monton. Richard Southwell of Horsham St. Faith's was the father of Robert Southwell [q. v.] ”
