In 1827 King
George IV had appointed Lieutenant-General Sir
Herbert Taylor (a senior Army officer and courtier) to be his First and Principal Aide-de-Camp ('an office which it is said was established expressly for the purpose of retaining the valuable services of Sir Herbert, who at that period was contemplating a continental journey'). Three years later King William IV appointed a number of Naval Aides-de-Camp to the King, and at the same time appointed Admiral
Lord Amelius Beauclerk to be his First and Principal Naval Aide-de-Camp. Meanwhile Sir Herbert Taylor continued to hold the distinct office of First and Principal ADC, under both King William IV and Queen Victoria, until his death in 1839. He was not directly replaced; however, Beauclerk, following his death in December 1846, was promptly replaced in the office of First and Principal Naval ADC by Vice Admiral
Sir William Parker, 1st Baronet, of Shenstone. ==First and Principal Naval Aides-de-Camp==