In the Witcher 3's "Ashen Marriage" quest, set in Novigrad, Geralt assists Triss Merigold and her intended, 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, Dijkstra's revelation of Castello's connection to witch hunters throws a wrench into the proceedings. Castello is revealed to be acting under duress, blackmailed by the hunters who threaten to expose his illegitimate daughter.
Geralt can choose to reveal this truth to Triss, either alone or with Castello present. Regardless, the wedding is called off. Triss is either disappointed in her fiancé's deception or grateful for his honesty, ultimately deeming the marriage premature.
This plot development presented an opportunity to enrich Geralt and Triss's dynamic and further develop supporting characters.