| Osowa Sień | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Lubusz |
| Subdivision Type2: | County |
| Subdivision Name2: | Wschowa |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Wschowa |
| Coordinates: | 51.8378°N 16.3372°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | right |
| Population As Of: | 2010[1] |
| Population Total: | 1132 |
| Postal Code Type: | Postal code |
| Postal Code: | 67-400 |
| Area Code: | (+48) 65 |
| Blank Name: | Car plates |
| Blank Info: | FWS |
Osowa Sień [2] is a village in the administrative district of Gmina Wschowa, within Wschowa County, Lubusz Voivodeship, in western Poland.[3] It lies approximately 5km (03miles) north-east of Wschowa and 590NaN0 east of Zielona Góra.
The current name of the village is literally a house in the aspen and appears in Polish historical sources also as Ossowa Sień or Ossowasień. The German name is derived from the name of a German settler Rüdiger and occurs in older versions as Rüdigersdorf or later shortened Röhrsdorf.
The first mention of the village dates from 1325, when it was called Rudegeri Villa.[4]
The Church of St. Fabian and St. Sebastian, built in the 14th century, is the oldest historical building in Osowa Sień. It is a single-aisle building, made of stone with a use of bricks. Baroque interior comes from the 18th century. Inside there is as well the sculpture of Christ from the 16th century and the Renaissance tombstones of a former landlords from Żychliński and Ossowski family.[5]
In the village there is also a neoclassical palace complex built between 1890-1904 and a Classicist manor from the beginning of the 19th century, both surrounded by large park areas.[5]