Charles is formally proclaimed king in a proper ceremony

The UK has a new monarch.

After the death of Queen Elizabeth the secondher eldest son, Karlwas officially proclaimed King by the Accession Council in a ceremony at St James’ Palace in London on 10 September.

During the ceremony, King Charles made a statement and swore under oath in the presence of secret advisers, including Queen Consort, Camillaand his eldest son Wilhelmwho is now the Prince of Wales.

“My mother’s reign was unmatched in its duration, commitment and dedication,” Charles said, per NBC News. “Even though we mourn, we give thanks for this extremely faithful life. I am deeply aware of this great legacy and the duties and heavy responsibilities of sovereignty that have now passed to me.”

Traditionally, an accession council is held within 24 hours of a monarch’s death. King Charles III however, received his new title immediately after the Queen’s death on 8 September.

On that day, the royal family announced in a statement on Twitter that the monarch had “died peacefully” at her Balmoral estate in Scotland.

Following Her Majesty’s death, the king declared a royal period of mourning to last until seven days after his mother’s funeral, for which no date has yet been set.