Elizabeth I (1533–1603,) was sometimes called The Virgin Queen, because she had no children.
The daughter of Henry VIII and his second wife, Anne Boleyn, Elizabeth was orphaned at the age of two and a half, when her father executed her mother. This, and the bloody wars with her half-siblings that preceded her ascent to the throne might have convinced her never to get married.
She should rightfully be accredited with the invention of ‘Real Politics:’ Her motto has always been: "video et taceo" ("I see, and say nothing".)
It enabled her to rule for 44 years.