To go with the American Dictatorship thread.
Your challenge is to install a dictatorship in the British Isles with a POD after 1795, and before 1900. This can be any kind, from personality-cult to military junta to plain ole oligarchy, but the POD cannot be something like "1899, 31st December, a fly doesn't crap. 45 years later, Sealion succeeds. It was pre-1900!"