British Regency
From Tardis Wiki, the free Doctor Who reference
The British Regency was an era of British history between 1811 and 1820. The First Doctor, Steven and Vicki noted they were in the era when they visited London during the last of the great frost fairs in February 1814. (AUDIO: Frostfire) The First Doctor had a Regency-era dress in his TARDIS. (AUDIO: Rise and Fall)