Suure-Jaani is a town in the northern part of the county of Viljandimaa in Põhja-Sakala rural municipality, 25 kilometres north of the town of Viljandi. Until 2017, Suure-Jaani was the administrative centre of Suure-Jaani rural municipality.

Johann Köler was a leader of the Estonian national awakening and a painter. He is considered as the first professional painter of the emerging nation. He distinguished himself primarily by his portraiture and to a lesser extent by his landscape paintings. Some of his most notable pictures depict the Estonian rural life in the second half of the 19th century.