The coat of arms above the entrance to Turn pod Novim Gradom Castle represents the family of Dinzl von Angerburg, its owner between the end of the seventeenth century and the end of the eighteenth century. In 1677, the castle was bought by the Carniolan provincial bookkeeper Adam Dinzl, originally from Innichen (Ital. San Candido) in Tyrol, who thoroughly renovated it during the following years. The heraldic plaque reveals his name (A[dam] D[inzl] V[on] A[ngerburg]), and the inscription 1680 below the coat of arms indicates when the renovation work on the castle was completed. Whereas the coat of arms was already granted to Adam’s grandfather Hans by King Ferdinand I in 1556, Adam himself, along with his four brothers, was elevated to the rank of nobility in 1659. On that same occasion, the family obtained the predicate Angerburg, and its coat of arms was improved. Its image can also be seen above the entrance to Turn Castle. The Dinzl coat of arms is also painted on the façade of a house in Lienz.

Sources:
Preinfalk, Miha: Družina Dinzl pl. Angerburg – graščaki s Turna pod Novim gradom. In: Preddvor – podobe minulih časov in ljudi: zbornik občine Preddvor (ed. Miloš Ekar et al.). Preddvor: Občina, 2018, pp. 248–268.
Stopar, Ivan: Grajske stavbe v osrednji Sloveniji. I. Gorenjska. Ob zgornjem toku Save (vol. 1). Ljubljana: Viharnik, 1996, pp. 150–152.