 On 19 August 1432, Sergianni Caracciolo was stabbed by four knights in the service of the queen in his room in Castel Capuano.In the 16th century, under the Spanish viceroyship of Pedro Álvarez de Toledo, all of the city's various legal offices and departments were consolidated here and it became the Hall of Justice - known as the "Vicaria" - the basements of which served as a prison.Over the entrance to the castle, the arms of Emperor Charles V, who visited Naples in 1535, are still visible.