The correct answer is Ravenna.
That is because Ravenna was a city that was reconquered by the Byzantine empire after it originally fell to the Ostrogoth when the fall of the Western Roman Empire occurred. It was a capital for western Romans and for the Ostrogoth, but it wasn't for the Byzantine people who had their own capitol even after they reconquered it.
East Florida became a prime object of territorial ambition for President James Monroe and his Secretary of State John Quincy Adams. His secretary Adams was viewing opportunities to confront Spain for control of the region.