Quinton is a place name, a surname or a masculine given name. The place name originates from Old English cwen "queen" or cwene "woman" and tun "farmstead, estate".
They will start with a relative pronoun, like: that, who, whom, whose, or which, or a relative adverb, like why, where, or when. Adjective clauses function as an adjective and modify nouns and pronouns. They are also called relative clauses.