Rosamund Clifford (born about 1150; died about 1176), often called "The Fair Rosamund" or the "Rose of the World," was the long-time mistress of King Henry II of England, famous in English folklore. The daughter of Walter Clifford, who had assumed the surname after taking possession of Clifford Castle on the river Wye, she first met the King when her father performed some service for him in the course of Henry's campaigns in Wales.