Gut Rothensiek, Estate and architectural heritage monument in Horn-Bad Meinberg, Germany.

Gut Rothensiek is an estate in Leopoldstal, a district of Horn-Bad Meinberg in the Teutoburger Wald. Its gatehouse, completed in 1687, is a protected monument; the grounds were converted for holiday guests in 1982 and have served as a hotel since 2003 after further rebuilding.

In 1481 Hermann Trumpe, a miller and servant of Count Bernhard VII of Lippe, received the lands around today's Gut Rothensiek as a fief. In 1574 the founder's grandson sold the estate to Count Simon VI in a sham transaction, because the town of Horn held a say in any sale. From 1671 von Kotzenberg acquired parts of the estate, and in 1687 he completed the gatehouse with moat, drawbridge and loopholes, which is now a protected monument.

The name Rothensiek probably derives from "roden" (clearing) and "Siek", a damp hollow. The gatehouse of 1687, with its moat, drawbridge and firing slits, is the monument visitors see; the estate has been run as a hotel since 2003 after conversions begun in 1982.

The estate lies in a forested area of North Rhine-Westphalia with easy vehicle access and parking available on site. Visitors should know that the grounds are open year-round, with reception and other services available most days.

A former barn complex was completely redesigned and now functions as the reception area and restaurant, yet the original building structure remains visible. This transformation shows how historical spaces were given new life while keeping their authentic character.