Nagahama Castle was built in 1575-1576 by Hashiba Hideyoshi (later known as Toyotomi Hideyoshi) in the village then called Imahama, renaming the area Nagahama. Previously, he had ruled from Odani Castle, though found this hard to do as it was a yamashiro (mountaintop castle). Hideyoshi was succeeded as lord by Yamanouchi Kazutoyo after the 1583 Battle of Shizugatake. Kazutoyo was then replaced by Naito Nobunari after the Battle of Sekigahara in 1600. In 1615, the castle was demolished, though parts of it were used in the construction of Hikone Castle.