Gormenghast is a fictional castle of titanic proportions that features prominently in a series of fantasy works penned by Mervyn Peake. It is the setting for the first two books in the Gormenghast series, Titus Groan and Gormenghast. It incorporates many of the elements of both medieval castles and Regency period stately homes, though in practice it operates like a small city-state. It has its own government, a Byzantine system of laws and rituals, a rigid class system, and is seemingly self-sufficient. The castle is home to the ancient House of Groan who have, as the Earls of Groan, ruled for centuries without anything changing.