Researchers may have found the only known portrait of Lady Jane Grey, which was defaced in an iconoclastic attack.

Mystery Solved? Is this the only portrait of tragic teen Queen Lady Jane Grey? - Compelling evidence that a 16th-century painting depicts Lady Jane Grey – the monarch executed in 1554 – in a stunning

Experts believe they have uncovered enough evidence to suggest a Tudor-era portrait could be the only known image of Lady Jane Grey painted in her lifetime. She was "the nine days queen", whose brief reign was an unsuccessful bid by Protestants to prevent the accession of her Catholic cousin Mary I (1553 to 1558).

Mysterious portrait could be of ‘Nine Days Queen’ Lady Jane Grey – analysis - Lady Jane was executed on Tower Green at the Tower of London on February 12 1554 at the age of 17.

Lady Jane Grey was executed on Tower Green at the Tower of London on 12 February 1554, at the age of just 17. | ITV News Anglia