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, procuring alcohol, and selecting a wedding gift for Triss. The gift's significance impacts Triss's response; a memory rose, reminiscent of 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 true intentions. 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. Regardless, the wedding is called off. Triss's reaction varies depending on the revelation's delivery, ranging from disappointment to gratitude for Castello's honesty, but ultimately deeming the marriage premature.
This plot development presents a missed opportunity to significantly deepen Geralt and Triss's relationship and further develop supporting characters.