Sovereigns of Great Britain

! colspan=8 style="background-color:#ccccff" | House of Hanover ! colspan=8 style="background-color:#ccccff" | House of Somerset
 * Victoria II 28 July 2018 – 20 August 2020 
 * VictoriaIIPortrait.png
 * CoAVictoriaII.png
 * 28 July 2018 Joined the Empire
 * 20 August 2020 Departed the Empire
 * Founder of the Empire of Great Britain
 * 20 August 2020 Departed the Empire
 * Founder of the Empire of Great Britain
 * William V 20 August 2020 – 1 October 2022 
 * WilliamVPortrait.png
 * CoAWilliamV.png
 * 20 March 2020 Joined the Empire
 * Chosen Successor of Queen Victoria II
 * Elizabeth III 1 October 2022 – 1 March 2023 (23 years, 212 days)
 * ElizabethIIIPortrait.png
 * CoAElizabethIII.png
 * 10 June 2020 Joined the Empire
 * Sister of King William V
 * Edward IX 1 March 2023 – Present 
 * King Edward IX.png
 * EdwardIXCoA.png
 * 28 July 2020 Joined the Empire
 * Nephew of Queen Elizabeth III
 * }
 * Edward IX 1 March 2023 – Present 
 * King Edward IX.png
 * EdwardIXCoA.png
 * 28 July 2020 Joined the Empire
 * Nephew of Queen Elizabeth III
 * }
 * Nephew of Queen Elizabeth III
 * }
 * }