Sorry, but I'm going to be pedantic.
If, Eddie, you have actually seen Burke's Peerage and it states "only surviving child was Richard" then that's fine, but if this information has come from Darry Lundy's website thePeerage.com then we don't know if Richard Talbot, was the only surviving child, or Burke's has only listed Richard, which they sometimes do to follow a particular lineage, or Darryl Lundy, as only got around so far to transcribing Richard to his database.
It's a minor point I know, but I think we need to be careful we are citing what the source actually states.