Not that I saw. It will take me a few days to go through Lovecraft's whole collected works in English. But then, nothing about the Lancelot myth, or Caradoc's history, mentions Personas.
There are other Lovecraftian Personas, of course. Hastur is one. [Abyssal Eye is cool, shutup.] But, again, he doesn't offer me character references.
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There are other Lovecraftian Personas, of course. Hastur is one. [Abyssal Eye is cool, shutup.] But, again, he doesn't offer me character references.