Cesare was now in considerable strength, apart from French lances, and even as these left him he was joined by a thousand Swiss, and another six hundred Romagnuoli from the Val di Lamone.

Moreover, as far as the reduction of Sinigaglia was concerned, no resistance was to be expected, for Cardinal Giuliano della Rovere had written enjoining the people to surrender peacefully to the duke.
What matters Cesare may have found in Cesena to justify the arrest of his Governor-General we do not know to the full with absolute certainty.
On December 22 Ramiro de Lorqua, coming from Pesaro in response to his master's summons, was arrested on his arrival and flung into prison.

His examination was to follow.
Macchiavelli, reporting the arrest, says: "It is thought he [Cesare] may sacrifice him to the people, who have a very great desire of it." Ramiro had made himself detested in Romagna by the ruthlessness of his rule, and a ruthless servant reflects upon his master, a matter which could nowise suit Borgia.

To all who have read The Prince it will be clear that upon that ground alone--of having brought Valentinois's justice into disrepute by the harshness which in Valentinois's name he practised--Macchiavelli would have approved the execution of Ramiro.
He would have accounted it perfectly justifiable that Ramiro should be sacrificed to the people for no better reason than because he had provoked their hatred, since this sacrifice made for the duke's welfare.
He does, as a matter of fact, justify this execution, but upon much fuller grounds than these.

Still, had the reasons been no better than are mentioned, he would still have justified it upon those.