George IV (1762-1830), the king of Great Britain and Ireland from 1820 to 1830, was one of the most detested British monarchs. He was also a man of exquisite taste who profoundly influenced the culture of his age.

Regency England, roughly the first 3 decades of the 19th century, takes its name from George's title of prince regent, which he held from 1811 to 1820. It was a period of great elegance in art, architecture, and the style of aristocratic life, and also one of unrestrained indulgence and moral laxity. The prince regent set the example in both respects.

The future George IV was born on Aug. 12, 1762. His father, George III, an extremely moral and pious man, loved his eldest child as a son, but hated him as his heir. For both reasons the young prince was kept under a very tight rein and carefully insulated from the outside world. In 1783, when the...