Queen Elizabeth served her nation and countries throughout the Commonwealth. But she touched people around the world.
The Queen was born in April 1926. She was the first child of the Duke of York, who later became King George the Sixth.
She married Prince Philip in 1947. The couple had four children, including their eldest son Prince Charles.
In her speech in 1947, Queen Elizabeth said, "I declare before you all that my whole life, whether it be long or short, shall be devoted to your service and to the service of our great imperial family to which we all belong."
She ascended the throne at the age of 25, after the death of her father.
She would eventually become the longest-reigning British monarch in 2015.
In June of this year, Platinum Jubilee events marked her seven decades on the throne.
She was beloved as a symbol of national unity in the United Kingdom.
One of her legacies was her attempt to make the royal family appear more accessible by connecting with the public.
Her husband, Prince Philip, died in April of last year.
The Queen had reduced her public appearances in recent months, with other royal family members taking over her engagements.