Goddric Gryffindor Based upon the image from JKR's website (shown here), he has mane-like red hair and green eyes. He was the most accomplished dueller of his time, an enlightened fighter against Muggle-discrimination and the first owner of the celebrated Sorting Hat.
But it's the "mane-like red hair" and the "green eyes" that catches our attention. Who else is described that way? Lily Potter, Harry's mother, that's who. Lily, who's parents and sister were all "muggles." Interesting.