House of Lancaster n 1: the English royal house that reigned from 1399 to 1461; its emblem was a red rose [syn: {Lancaster}, {House of Lancaster}, {Lancastrian line}]
Lancaster \Lancaster\ prop. n. 1. A city in Northwest England on the river Lune. [WordNet sense 1] [WordNet 1.5] 2. The English royal house that reigned from 1399 to 1461; its symbol was a red rose; called also the {House of Lancaster}. [WordNet sense 2] Syn: Lancastrian line. [WordNet 1.5]