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 more mundane presents.

However, a surprising revelation from Dijkstra exposes Castello's connection to witch hunters, casting doubt on his intentions. Castello's actions are revealed to stem from blackmail – the hunters threaten to expose his illegitimate daughter from a previous marriage.

Geralt has the option of revealing this truth to Triss, either privately or with Castello present. Regardless, the wedding is called off. Triss either expresses disappointment in her fiancé or appreciates his honesty, concluding the marriage was premature.

This plot twist offered a potential opportunity to enrich Geralt and Triss's relationship and further develop supporting characters.