What century was Queen Elizabeth II born?

Elizabeth II was born on 21 April 1926 (in the 20th century) and died on 8 September 2022. She was Queen of the United Kingdom and other Commonwealth realms from 6 February 1952 until she died in 2022. She was queen regnant of 32 sovereign states throughout her lifetime and remained the monarch of 15 realms by the time of her death. Her reign of over 70 years is the longest of any British monarch and the longest verified reign of any female head of state in history. Elizabeth reigned as a constitutional monarch through major political changes such as the Troubles in Northern Ireland, devolution in the United Kingdom, the decolonization of Africa, and the United Kingdom's accession to the European Communities and withdrawal from the European Union. As queen, Elizabeth was served by more than 170 prime ministers across her realms.

Source: Wikipedia