What creature was said to be held captive in a maze at the palace of Minos?

The creature held captive in a maze at the palace of Minos was the Minotaur, a mythical being with the body of a man and the head of a bull. The labyrinth, designed by the architect Daedalus, was created to contain the Minotaur, which was the offspring of Pasiphae and a sacred bull. According to legend, the Minotaur was eventually slain by the hero Theseus, who navigated the labyrinth with the help of a ball of thread provided by Ariadne.