castle | Windsor Castle | Castle | Edinburgh Castle | Balmoral Castle | Castle (TV series) | Prague Castle | Castle Donington | Corfe Castle | Castle Hill | Castle Hill, New South Wales | Powis Castle | Roy Castle | Colditz Castle | Castle Combe | New Castle | Nagoya Castle | Dublin Castle | New Castle, Delaware | Lancaster Castle | Hearst Castle | Harold & Kumar Go to White Castle | Cardiff Castle | The Castle of Otranto | Tantallon Castle | Takeshi's Castle | Luttrellstown Castle | Dover Castle | Buda Castle | Bluebeard's Castle |
Count Johan II of East Frisia (29 September 1538, Aurich – 29 September 1591, Stickhausen Castle) was a member of the House of Cirksena and from 1561 until his death in 1591 co-regent of the county of East Frisia.