John "the White Knight" de Erleigh - Who was the White Knight? John of this profile or his grandfather?

NAMES JOHN OF THIS PROFILE THE WHITE KNIGHT
http://freepages.rootsweb.com/~desmier/genealogy/docs/Earles%20of%2...
Appears to be from History and Genealogy of the Earles of Secaucus
With an Account of Other English and American Branches ·  Volume 2
By Isaac Newton Earle ·  1925

FAMILYSEARCH NAMES JOHN OF THIS PROFILE THE WHITE KNIGHT
https://ancestors.familysearch.org/en/LX7R-K6S/sir-john-%27the-whit...
vi-1332-1394

FAMILYSEARCH NAMES THE GRANDFATHER OF THE JOHN OF THIS PROFILE THE WHITE KNIGHT
https://www.familysearch.org/tree/person/details/LDPZ-8H1

NAMES THE GRANDFATHER OF THE JOHN OF THIS PROFILE THE WHITE KNIGHT
https://earlefamilyhistory.com/the-manor-of-earley-regis-or-earley-...

FABPEDIGREE  NAMES THE GRANDFATHER OF THE JOHN OF THIS PROFILE THE WHITE KNIGHT
https://fabpedigree.com/s064/f464793.htm

Were both called "The White Knight"?