How can William be the son of Henry ? Henry died 1245 see the source for Henry's Death and William was born 1251
The confirmed Matches above by Erica above should be removed as well as Erica be removed as a Curator Smart matching should never be done on Ancestry, MyHerritage, or Geni it just copies wrong info furthermore Wikipedia should never never Be used for Family History Research of any Kind at all PERIOD. as any one can edit or change it. Another favorite practice of Erica, she also likes to use that paid site Stirnet for the Baliol family with a PDF File of info from that Stirnet site with only 2 Citations listed in the file and one can no longer be found and the Other is a citing the Book Lives of Baillies that is good for the Baillie Family but should be taken with caution for the Baliol Family not to mention this book can be found on Google for free LOL
See here a free google search result for Henry Baliol's death year of 1245 minimum 5 years before William's Birth year of 1251
https://books.google.ca/books?id=cCBkAAAAcAAJ&pg=PA492&lpg=...