In the Witcher 3's "Ashen Marriage" quest, set in Novigrad, Geralt assists Triss Merigold and her fiancé, Castello, with wedding preparations. His tasks include monster extermination in the canals, procuring alcohol, and selecting a wedding gift for Triss. The gift's significance impacts Triss's response; a memory rose, a callback to Witcher 2, evokes a strong emotional reaction, while less sentimental gifts receive a cooler reception.
However, a surprising revelation from Dijkstra exposes Castello's connection to witch hunters, casting doubt on his intentions. It's revealed that he's acting under duress due to blackmail involving a secret daughter from a previous marriage.
Geralt has the option of revealing this truth to Triss, either alone or with Castello. Regardless, the wedding is called off. Triss either expresses disappointment or gratitude for Castello's honesty, ultimately deeming the marriage premature.
This plot development had the potential to enrich Geralt and Triss's dynamic and further develop supporting characters.