Who made Brighton fashionable by building a palace there and what is the town's nickname?

thx in advance!

The Royal Pavilion is a former royal residence located in Brighton, England. It was built in the 19th Century as a seaside retreat for the then Prince Regent. It is often referred to as the Brighton Pavilion.


History
The Prince Regent, who later became King George IV, first visited Brighton in the year of 1783, due to his physician advising him that the seawater would be beneficial to his gout. In 1786 he rented a farmhouse in the Old Steine area of Brighton. Being remote from the Royal Court in London, the Pavilion was also a discreet location for the Prince to enjoy liaisons with his first wife, Mrs Fitzherbert, his marriage to whom was illegal, due to her Catholic religion.

Henry Holland was soon employed to enlarge the building. The Prince also purchased land surrounding the property, on which was built in 1803 a grand riding school and stables in an Indian style, to designs by William Porden.


The richly-decorated Banqueting Room at the Royal Pavilion, from John Nash's Views of the Royal Pavilion (1826).Between 1815 and 1822 the designer John Nash redesigned the palace, and it is the work of Nash which can be seen today. The palace looks rather striking in the middle of Brighton, having a very Indian appearance on the outside. However, the fanciful interior design, primarily by Frederick Crace and Robert Jones firm, is heavily influenced by both Chinese and Indian fashion (with Moghul and Islamic architectural elements). It is a prime example of the exoticism that was an alternative to more classicizing mainstream taste in the Regency style.

London-by-the-sea

Palace was built by the Prince Regent (later King George IV)......

Nickname "London-by-the-Sea"