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, unlike simpler presents.
However, Dijkstra's revelation of Castello's ties to witch hunters throws a wrench into the proceedings. Castello's involvement stems from blackmail – the hunters threaten to expose his illegitimate daughter from a previous marriage.
Geralt can disclose this truth to Triss, either privately or with Castello present. Regardless, the wedding is called off. Triss's reaction varies; disappointment in her fiancé or gratitude for his honesty, but ultimately, she deems the marriage premature.
This plot development offered a potential avenue for enriching Geralt and Triss's dynamic, and for further developing supporting characters.