The village Deštná is located about 8 km north-east of the small town Kardašova Řečice, 520 m a.s.l.

The history of Deštná dates back to the first half of the 13th century, when the Teutonic Order founded the St. Otton's Church here. The settlement arose around the church about 1294. In 1599 the spring of the mineral water was discovered in the village and the spa was founded there. The spa ran till the half of the 19th century. In the new era after the Second World War, the spring has been used for the production of lemonade.

The originally Gothic St. Otton's Church was founded after 1225. It was reconstructed several times, last in 1733 into the Baroque style. Its present appearance is the mixture of various styles - the Gothic presbytery, Romanesque portal and Baroque nave. The Baroque furnishings can be found in the church.