Definition from Wiktionary, the free dictionary
See also: Trotz
trotz (+ dative or genitive)
- The word originally governed the dative exclusively, as it is shortened from either the phrase zum Trotz or from constructions with the verb trotzen, both of which govern the dative. Compare trotzdem from the same sources, which is a connection of this word with the required dative article. While this is the predominant usage (in spoken German), due to historical hypercorrection with a desire for a formal tone, usage with the genitive is considered correct today by the official rules of Germany.
- trotz in Duden online