Vertical sundial in the middle of the south facade of the north wing. This is the oldest of the 3 sundials of this monastery, and most likely dates from the 17th century. Although only 30% of its surface has been preserved, the characteristic zodiac signs are clearly recognizable.

References:

1. Puhmajer, Petar; Kučinac, Teodora (2008) "Facade of the Pauline Monastery in Lepoglava.", Proceedings of the Institute for the History of Art, 32, 151-166. link
2. Puhmajer, Petar (2013) "Construction and transformation of the complex of the Pauline monastery and the church of St. Mary in Lepoglava.", Yearbook of the Protection of Cultural Monuments of Croatia 37/38, 81-100. link