In The Witcher 3's "Ashen Marriage" mission, set in Novigrad, Geralt assists Triss Merigold and her fiancé, Count Castello, in wedding preparations. His tasks range from monster extermination in the canals to procuring alcohol and selecting a wedding gift for Triss. The gift choice impacts Triss's reaction; a memory rose, a callback to The Witcher 2, elicits a strong emotional response, while less significant gifts receive a cooler reception.
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 choose to reveal this truth to Triss, either alone or with Castello. 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 unexpected plot twist offers a chance to deepen Geralt and Triss's relationship and further develop supporting characters.