Robert "died during his term as sheriff on 12 Aug. 1420, at the early age of 36. His heir was his elder son, Thomas, then aged ten, who subsequently sat for Shropshire in 1435 but died less than four years afterwards when, on the death of Robert's widow (who had meanwhile married Sir William Mallory of Papworth, Cambridgeshire), the family estates passed to Robert's younger son, Roger Corbet."
via message 0840938636 (folder 1996-08 of GEN-MEDIEVAL forum, posted 24 Aug 1996 by Don Stone)
'Roger is said to have been aged 24 years in 1438, ...' The article goes on to argue that he could not have been born so early, but this is based on an understanding that his mother was daughter of Sir. William Malory, while later research indicates that she was his wife (after her first husband Robert Corbet died).
