Canada

Following endorsements from QAnon leaders, she built up a band of followers, declared that she had overthrown the legitimate government of Canada, and says her claim to the "Queen of Canada" title is backed by secret, powerful US military interests.

That has resulted in followers losing their homes, cars and possessions, says Christine Sarteschi, a professor at Chatham University in Pittsburgh and an expert on extremism and the sovereign citizen movement - a broad collection of anti-government groups who dodge taxes and make up their own fake legal systems.

Ms Didulo and her followers spread a variety of different beliefs, including sovereign citizen, anti-vaccination conspiracies, and ideas related to QAnon - a wide-ranging, completely unfounded theory that says former US President Donald Trump is waging a secret war against elite Satan-worshipping paedophiles in government, business and the media.

Ms Didulo also frequently calls for violence against those administering Covid vaccines to children, according to the Anti-Defamation League.