Should Jane be known as Queen Jane or Lady Jane?

Matt Lewis (author of ‘The Survival of the Princes in the Tower’)

I think I’d accept Jane being the nine-day queen. Usually, the next monarch would, after 1272, succeed immediately on the death of their predecessor. That is usually accompanied by an immediate proclamation. The delay in proclaiming Jane as queen between 6 July and 10 July points to the uncertainty over who was legally qualified to succeed. So, I think there was effectively an interregnum for four days until that question was (at least initially) settled.

Leanda de Lisle (author of ‘The Sisters Who Would Be Queen: The Tragedy of Mary, Katherine and Lady Jane Grey’)

‘She was Lady Jane DUDLEY – not Grey, since she was married, and not Queen, as she was never accepted as such by parliament as every monarch since Edward IV had been.’