1811

On 5 February 1811 the British Regency began when King George III lapsed into "permanent madness". (EDA: The Adventuress of Henrietta Street, CC: Frostfire)

At his home in Cambridge, William Blake fell through a hole in Time and found himself trapped in the netherworld of the Yssgaroth. He eventually returned to this time with the Seventh Doctor and Bernice Summerfield in the Doctor's TARDIS. (NA: The Pit)