Owiesno is a village in the administrative district of Gmina Dzierà ¼oniów, within Dzierà ¼oniów County, Lower Silesian Voivodeship, in south-western Poland.
Owiesno was first mentioned as Ovesonovo in a 1260 deed and as Haverdorph in 1292, when it was part of medieval Piast-ruled Poland. Later on, the village passed to Bohemia, Hungary, Austria, Prussia and Germany, before it became again part of Poland following the defeat of Germany in World War II in 1945.
Upon the foundations of an old Knights Templar castle Przecà Âaw of Pogorzela, the Bishop of Wrocà Âaw and chancellor of Emperor Charles IV, had a palace erected in the 14th century. It was rebuilt several times and decayed after 1945 so only ruins remain.
The Holy Trinity church () was erected about 1583 and received a Baroque equipment including an altar with a Trinity painting about 1730.