Since becoming a member of the royal family upon her marriage to Prince William in April 2011, Kate Middleton has acquired a number of official royal titles and noble names.
The princess is both a duchess and a countess as well as a baroness and lady. She currently holds a variety of official royal and military titles.
Princess of Wales
Following Queen Elizabeth II’s passing in September 2022, Kate inherited the title of Princess of Wales. As her father-in-law ascended to the throne, Kate and William were appointed Prince and Princess of Wales.
Duchess of Cambridge
The princess retains the title of Duchess of Cambridge which is her longest held title and the one she received upon marriage.
Duchess of Cornwall
When King Charles took the throne, Kate received this new courtesy title inherited from Queen Camilla.
Countess of Chester
As heir to the throne, Prince William automatically assumes the title Earl of Chester. Kate and William are known by their regional titles — Earl and Countess of Chester when visiting Scotland.
Duchess of Rothesay
When she’s on Scottish soil, the princess also goes by the name Duchess of Rothesay. Both the Countess of Chester and Duchess of Rothesay are titles exclusively reserved for the direct heir to the throne.
Countess of Carrick
In addition to her Scottish titles, Kate has a special moniker in Northern Ireland. She holds the regional title Countess of Carrick.
Baroness of Renfrew
In Northern Ireland, Kate also answers to the name Baroness of Renfrew.
Baroness Carrickfergus
Presented with this title upon marriage, Kate was given this appointment by the late Queen upon her marriage to William in 2011. The couple became the Baron and Baroness of Carrickfergus — a historic town in County Antrim, Northern Ireland. (The couple finally visited their namesake during a royal visit in 2022.)
Lady of the Isles
A historic Scottish title, William is Lord of the Isles while his wife carries the title Lady of the Isles. William holds the title as heir apparent to the British throne.
Military Titles
The princess also holds the title Colonel of the Irish Guards, Commodore-in-Chief of the Fleet Air Arm, Colonel-in-Chief of the 1st Queen’s Dragoon Guards, Royal Honorary Air Commodore of the RAF Coningsby and Royal Honorary Air Commodore of the Air Cadets.
