The Holy Cross Abbey in Donauwörth was founded around 1040 by Mangold I von Werd as a Benedictine convent. In the early 12th century the convent moved to the western edge of the city to the highest point insode the city walls. After buildings were damaged during the Thirty Years' War, the abbey church wa rebuilt. In 1770-1780 it was expanded to the Rococo style.
The monastery was dissolved in 1803. The church remained as a parish church. At the beginning of the fifth coalition war (1809) resided Napoléon Bonaparte for several days in the Prelature of the dissolved monastery. The 'Napoleon Room' still exists. In 1935 the Holy Cross Abbey returned to religious use.
References:Trenčín Castle is relatively large renovated castle, towering on a steep limestone cliff directly above the city of Trenčín. It is a dominant feature not only of Trenčín, but also of the entire Považie region. The castle is a national monument.
History of the castle cliff dates back to the Roman Empire, what is proved by the inscription on the castle cliff proclaiming the victory of Roman legion against Germans in the year 179.
Today’s castle was probably built on the hill-fort. The first proven building on the hill was the Great Moravian rotunda from the 9th century and later there was a stone residential tower, which served to protect the Kingdom of Hungary and the western border. In the late 13th century the castle became a property of Palatine Matúš Csák, who became Mr. of Váh and Tatras.
Matúš Csák of Trenčín built a tower, still known as Matthew’s, which is a dominant determinant of the whole building.