 A new capital, Heian-kyō, (now Kyoto), was established in the immediate neighborhood in 794, and Ōtsu was revived as an important traffic point and satellite town of the capital.With the establishment of the new capital, the name of the city was restored to "Ōtsu".Ōtsu prospered during the Edo period (1603–1868) because of the port on Lake Biwa and for its role as a "shukuba", or post town (see also Ōtsu-juku).