Sawayama Castle (佐和山城, Sawayama-jō) was a castle in the city of Hikone, Shiga Prefecture, Japan. This castle was an important military stronghold of Ōmi Province. The Azai clan held this castle in the Sengoku Period. Niwa Nagahide held it after the ruin of the Azai clan and later, Ishida Mitsunari in the end of the 16th century. | ||||||