[@Dead Cruiser]

No.

The knights for all purposes, are human and paragons of humanity. They might have some inhuman blood in them that gives them special abilities, like say, someone descendant from a giant would be much stronger than a human and likely have excellent smithing skills, or someone descendant from Elves might have access to the Leargas, they'd still mostly be human.

As well, without getting to into it a dhampir simply wouldn't be possible.