Linked from
The 15 pages that link to Roman Question, each with the reason it gives.
Papal StatesRelated: The annexation left the papacy rejecting the loss of its temporal independence.
RisorgimentoRelated: The seizure of Rome left church–state relations unsettled for decades.
Vatican CityRelated: It framed the negotiations that produced Vatican City.
Pope Pius IXRelated: Pius IX refused to recognize the settlement created by Rome’s annexation.
Capture of RomeRelated: The capture initiated the unresolved political conflict it names.
Pope Benedict XVRelated: It restricted Benedict’s diplomatic standing during the war.