Who is queen of England at the moment?

As of my last update in September 2021, Queen Elizabeth II was the monarch of the United Kingdom and the other Commonwealth realms. However, since then, Queen Elizabeth II passed away on September 8, 2022, and her son, Charles, the former Prince of Wales, succeeded her as King Charles III.

Therefore, as of my knowledge cutoff in September 2021, Queen Elizabeth II was the queen of England. For the most up-to-date information, I recommend checking a reliable and recent news source.