As a follow up to my other post …
For the Sede Vacante of 1655, the coins struck in Ferrara were struck with the arms of Papal legate Giambattista Spada (crossed swords), not those of the Roman Camerlengo Antonio Barberino (three bees):
Ferrara - N#364287
Rome - N#129302
https://it.wikipedia.org/wiki/Giambattista_Spada
So I suggest we add this name to the list of Ruling Authorities for the Sede Vacante of 1655.
