The Principality of Wy is a claimed micronation in Australia that is located in the Sydney suburb of Mosman. It is an unrecognised community and has not been recognised locally or nationally. In 2004 Paul Delprat claimed to secede from Mosman and develop his own micronation in response to a lengthy dispute with the local council government. After 20 years of seeking planning permission, he lost his appeal in 2013.