A ynasty is a succession of rulers who belong to the same family for generations. A dynasty is also often called a "house", e.g. the House of Saud or House of Habsburg. In the histories of Europe, much of Asia and some of Africa, ruling and noble houses have usually been patrilineal; inheritance and kinship being predominantly viewed and legally calculated through descent from a common ancestor in the male line. Often, however, if the male lineage died out, descendants through females (and sometimes the females themselves) were recognized as entitled to inherit the dynasty's realms and/or wealth.