Now here's a big one: 髑髏の騎士. In English, that's the Skull Knight.
髑髏 (DOKURO) is a very difficult kanji and one that is not commonly used. It means a skull of which the flesh has disappeared due to prolonged exposure to the elements. It implies that it is old and worn. It's also the equivalent to a "death's head" in English: a human skull as a symbol of death.
騎士 (KISHI) means "knight" in the general sense. It originally referred to samurai who fought on horseback, which is reflected in the way it's composed.
の (NO) connects the two words.