The Feimanka (Polish: Fejmanka), a river (stream) in Latvia (Latgale, Preiüi Municipality), is the right tributary of the Dubna river.àThe long Feimanka flows from Feimaà Âu ezers, passes through the city of Riebià Âi and flows about 1.5 kilometers (one mi) north-west of the city of Preiüi. Its main tributary, the Preiüupe, joins its left bank in the area of à  kilteri. The Feimanka flows into the Dubna in the village of Roà ¾upe, about twelve kilometers before the latter's mouth to the Daugava.