Who was d'Artagnan? Describe his appearance.

D’Artagnan is the protagonist of Alexandre Dumas's novel The Three Muskateers. He is a cadet who meets the titular group of the king's Muskateers, Athos, Porthos, and Aramis, and recounts the adventures that the four of them have together amidst the scandal, danger, and intrigue of the French court of Louis XIII. The youthful d'Artagnan is based on a real historical figure and is characterized by his bravery and wit. Though he comes from humble beginnings, these noble qualities quickly help him to elevate his lot in life. The narrator compares him to the famous literary figure of Don Quixote, a man with dreams of being a knight and a great love for chivalry.
Physically, d'Artagnan is described as noticeably appearing to be a Gascon, meaning one who comes from Gascony, a poorer rural region of France. In chapter 1 of the novel, d'Artagnan is further described thus:

high cheek bones, a sign of sagacity; the maxillary muscles enormously developed, an infallible sign by which a Gascon may always be detected, even without his cap—and our young man wore a cap set off with a sort of feather; the eye open and intelligent; the nose hooked, but finely chiseled. Too big for a youth, too small for a grown man