1 Doppia Sede Vacante

Sede Vacante coinage was struck by the Apostolic Camera — the administrative body that governs the Church between pontificates — during the vacancy following Pius VII's death in August 1823. Pius had survived Napoleon's imprisonment and the dissolution of the Papal States; his death after a 23-year reign triggered an unusually charged conclave. The Doppia denomination had deep roots in papal gold coinage, but Sede Vacante issues were by definition short-run: minting ceased the moment a new pope was elected, which in this case came with Leo XII's election on 28 September 1823.