Why was Lady Jane Grey's claim to the throne controversial?
She was too young
She was not of royal blood
Edward VI's will subverted the line of succession
She was not English
Answer
Edward VI's will nominated Jane and her male heirs as successors to the Crown, removing his half-sisters, Mary and Elizabeth, from the line of succession on account of their illegitimacy. This subverted their claims under the Third Succession Act, causing controversy.
The Forgotten Queen: Testing Your Knowledge on Lady Jane Grey