The manor at Calce (dictated by Kauc) was built by Yuri Pl. Steinberg around the year 1620. The mansion was named after the local name of the kal, which denotes a shallow roll, a lukewarm, or feeding cattle.
In 1684, Franc Anton Steinberg (1684-1765) was born on Calca, the regional road director and manager of the Idrija mine, which was responsible for the development of mathematics, mechanics, karstology and cartography in Slovenia. Since 1843, the castle was owned by a poet, composer , politics and the Slovenian patriot Miroslav Vilhar (1818-1871). On May 9, 1869, Vilhar organized the sixth All-Slavic camp in Kalca, where the 8,000-head crowd demanded the United Slovenia and the equality of the Slovene language. Kalc was then the center of national movement and cultural events. Here, as the native teacher of Vilhar's children, between 1858 and 1861, the writer Fran Levstik was living in the house by Martin Krpan.
The castle was inhabited as a part of the village of Bač until 1919. The only large complex with an economical building and a chapel was preserved only by a repeatedly renovated tower and the promenade of centenary lows and chestnut trees. In the vicinity of the castle there is the Pivka River, and in the event of a heavy rain, several intermittent lakes are formed in the vicinity.