In Insular Brythonic mythology, and especially in Britain, Britannia was the patron goddess of the early British Celtic tribes. In more recent tradition, she is viewed as the personification of Great Britain, and appeared on the penny coin between 1797 and 1970, and on the 50 pence coin since 1969.
Classical Romans referred to the island of Britain and to the various administrative provinces they set up there using the name Britannia.