Queen Elizabeth is celebrating her 91st birthday today.

As per tradition, the monarch has two "birthdays": her actual date of birth on April 21, and an "official birthday" in June.

To mark her 91st year, CTV News has curated photos of her well-documented life.

Watch the video below to see moments from the monarch over the years, from early days with her sister to her coronation ceremony to time spent with family and loved ones.