| Trumau | |
| Settlement Type: | Municipality |
| Pushpin Map: | Austria |
| Pushpin Mapsize: | 270 |
| Pushpin Map Caption: | Location within Austria |
| Coordinates: | 48°N 37°W |
| Subdivision Type: | Country |
| Subdivision Name: | Austria |
| Subdivision Type1: | State |
| Subdivision Name1: | Lower Austria |
| Subdivision Type2: | District |
| Subdivision Name2: | Baden |
| Parts Style: | para |
| Leader Title: | Mayor |
| Leader Name: | Otto Pendl |
| Elevation M: | 202 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 2521 |
| Area Code Type: | Area code |
| Area Code: | 02253 |
| Website: | www.trumau.at |
Trumau is a town in the district of Baden in Lower Austria in Austria.
The river Triesting runs through the market town of Trumau. The town is situated between the south-west and north-east part of the Wiener Becken, on a sea level of 202 m. Trumau spreads over 18,57 km² and houses 3465 inhabitants.
The town was founded during the late Middle Ages, as a gift from the Babenberger Leopold IV to the Heiligenkreuz monastery.
The middle high German word ‚drum’ means endpiece. In the case of Trumau it could mean the end of the meadowlands. In ancient documents, Trumau appears in the following versions: between 1137-1340: Trumowe, 1139 Drumau, 1178 Drumawe, between 1233 and 1294 Drumowe, between 1303 and 1306 Drumbuowe, 1340 Drumenaw, 1380 Drumpnaw, 1388 Drumpnow, 1463 Thrumbaw.
For more than 840 years, there has been a connection between the parish church of Trumau and the Cistercian Abbey of Heiligenkreuz. In the course of the counter-reformation, Emperor Rudolph II and Bishop Urban got the approval of Abbot to build the parish church of Trumau in 1583. They agreed on the patronage one year later. At this time the parish of Trumau was under the control of the parish Traiskirchen, which was incorporated with Melk Abbey. The abbot of Heiligenkreuz arranged the construction of the church, which was then built by "Maister Andre Stuber" of Baden. The work of the chisellers was carried out by the Italian brothers Elias and Alexius Payos, who were masters in this kind of work, from the monastery’s own delf. The church was finished under Abbot, and it was consecrated by Bishop Hector Wegmann of Passau on 22 February 1588. John the Baptist is the parish's patron saint.
The castle of Trumau is a moated castle. From the beginning it has been in the ownership of Heiligenkreuz Abbey. The castle was a present from the Babenberg’s Margrave Leopold IV. in 1138. In the 12th century, a grange was built by the Cistercians at the place where the castle stands today. The abbey managed agriculture, viniculture, and sheep-breeding there. Towards the end of the first Austrian Ottoman War, the courtyard was rebuilt from 1548 to 1558 because the estate had been totally destroyed in 1548. The building was burnt down by Hungarian rebels in 1621. In 1650, abbot arranged the rebuilding to a castle, which was finished in 1667. Emperor Leopold I. overnighted several times at Castle Trumau.
During the fifth Austrian Ottoman War, the castle was heavily damaged in 1683. In course of the rebuilding, the towers were gravely changed. Further fires like in 1811 and 1880 damaged the castle.
In 2009, the International Theological Institute moved into the castle Trumau.