Are the regency and victorian era the same?
No, The Regency was at the end of the reign of King George III. He suffered from an illness, possibly Porphyria, that caused dementia. As George III was not in a fit state to carry out the duties of a king, the responsibility went to Prince George, who then became known as the Prince Regent. A regent is a person selected deputise as head of state. In the case of the Prince Regent, that period lasted between 1811 until King George III died, in 1820. The Prince Regent then became King George IV. The next monarch was King William IV (1830-1837), then Queen Victoria (1837-1901). So the Regency was 1811-1820, the Victorian era was 1837-1901.