In the summer of 1553, a girl of around 16 was proclaimed the queen of England. Her name was Lady Jane Grey, and she ruled for just nine days before being executed at the Tower of London. Her reign was the shortest in British history.

Researchers believe they may have identified the only known portrait of Lady Jane Grey, the “nine-day queen” who briefly reigned over England in 1553. The painting, on loan from a private collection,

A portrait purporting to be of a living Lady Jane Grey, best-known from a post-death painting of her execution, has gone on display.