Bellamine Jug

It is called a 'Bellarmine' jug after Roberto Bellarmino (1542-1621), who became a Cardinal in the Roman Catholic church in 1599.
Bellarmino was unpopular inmany northern European states because he upheld the Papal teachings against those of the Protestant Christian reformers. The moulded masks and the rotund shape of such pots were meant to depict the Cardinal.