Why did Camillo Benso, count di Cavour resign during the dispute over dissolving monasteries in 1855?

In 1855, Camillo Benso, count di Cavour, resigned as prime minister following a political conflict regarding the dissolution of certain monasteries.

The crisis was triggered when Luigi Nazari di Calabiana, the bishop of Casale, led a clerical counterattack against Cavour’s government, which had sought to pass legislation targeting mortmain lands and ecclesiastical salaries. King Victor Emmanuel II attempted to veto the bill to dissolve the monasteries, placing him in direct opposition to the parliamentary majority that supported the measure.

Cavour resigned in response to this royal interference. However, the move proved to be a strategic success; the King soon realized that he lacked the political strength to openly defy the will of Parliament and was forced to accept the legislation, ultimately reinstating Cavour.1