Robert therefore , to reduce Ghibelline ( and Visconti ) power in the north , advanced on Saluzzo and besieged it .
Thomas , who had married a Visconti , was a Gibelline and Manfred a Guelf with the support of the Angevin King Robert of Naples .
Robert of Naples to reduce Ghibelline ( and Visconti ) power in the north , advanced on Saluzzo and besieged it .
Thomas , who had married a Visconti , was a Gibelline and Manfred a Guelf with the support of the Angevin King Robert of Naples .