Wikipedia
Avant-corps
An avant-corps (, ) refers to a part of a building, such as a porch or pavilion, that juts out from the corps de logis, usually over the full height of the building. It is common in façades in the Baroque period.
A corner risalit is where two wings meet at right-angles. Baroque three-winged constructions are often incorporated as a median risalit in a main hall or a stairwell, such as in Weißenstein Palace and the Roßleben Convent School.