He is the 25th holder of the office of Private Secretary since its inception in 1805.
He previously served them in their capacity as Prince of Wales and Duchess of Cornwall.
Alderton was educated at Abingdon School.
1967
Sir Clive Alderton (born 9 May 1967) is a British diplomat and courtier who has served as Private Secretary to King Charles III and Queen Camilla since 8 September 2022.
As Private Secretary to the Sovereign, he is the senior operational member of the Royal Households of the United Kingdom.
In this role, he took part in the 2023 Coronation.
1986
He joined the Foreign Office in 1986 and subsequently served in various diplomatic posts in Poland, Belgium (European Union), Singapore and France.
2006
In 2006, he was appointed Deputy Private Secretary to Prince Charles and his wife, and he was promoted to Private Secretary for Foreign and Commonwealth Affairs to Their Royal Highnesses in 2009.
2012
In 2012, he took up an appointment as ambassador to Morocco and simultaneously non-resident ambassador to Mauritania.
2013
Alderton was appointed Lieutenant of the Royal Victorian Order (LVO) in the 2013 New Year Honours, Commander of the Royal Victorian Order (CVO) in the 2019 Birthday Honours and Knight Commander of the Royal Victorian Order (KCVO) in the 2022 Birthday Honours.
He is a recipient of both the Queen Elizabeth II Diamond Jubilee Medal and the Queen Elizabeth II Platinum Jubilee Medal.
2014
In 2014 He was made a Knight Officer of the Order of the Crown of Romania, a dynastic order of Romania.
He was promoted to a Commander of the same order on 19 October 2023.
On 13 September 2022, he was sworn in as a member of His Majesty's Most Honourable Privy Council entitling him to the prefix "The Right Honourable" for life.
2015
He was appointed principal private secretary to the Prince of Wales and Duchess of Cornwall on 5 February 2015.
He served in that position until the Prince's accession to the throne as King Charles III on 8 September 2022, following the death of his mother, Queen Elizabeth II.
On 13 September 2022, Alderton was sworn as a member of the Privy Council of the United Kingdom.
On 20 October 2022, he attended the Privy Council as one of the King's Private Secretaries.
He was Joint Private Secretary to the King, serving with Sir Edward Young, until 15 May 2023, when Young retired.
From then he has been Private Secretary to the Sovereign.
Alderton is also a Trustee of the Prince of Wales's Charitable Fund.