In Calendar of the Patent Rolls for 46 Edward III (Volume 15), searches for "Baddock" (Baldock) and "Belknap" (Bealknap) turned up nothing for this cited reference. And "Phelipp" turned up zip/nada. So maybe I'm in the wrong text, who knows.
https://babel.hathitrust.org/cgi/pt?id=mdp.39015031081113&view=...
https://babel.hathitrust.org/cgi/pt/search?id=mdp.39015031081113&am...
In my failed attempt to track it down, I stumbled onto an exhaustive list of sources for the Belknap genealogy, but haven't sifted through them yet.
http://www.belnapfamily.org/sirrobertbelknap.htm
And in keeping with the topic of sources on the same profile, do these look at all relevant (they don't to me):
https://www.geni.com/documents/view?doc_id=6000000012536538336
https://www.geni.com/documents/view?doc_id=6000000012537512275
Here are a sampling of Fine Rolls, but I've yet to find the reference given in the profile. With all the spelling variations to complicate matters, having to track them down every time is discouraging. The reason for providing sources is so that people can check them for verification.
https://archive.org/search.php?query=subject%3A%22Fine-rolls%22