The developers of The Witcher 3 planned to include Triss's wedding in the game

In the Witcher 3 quest, "Ashen Marriage," Geralt assists Triss Merigold and her fiancé, Castello, in their hasty wedding preparations in Novigrad. His tasks include ridding the canals of monsters, 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 powerful emotional reaction, unlike simpler gifts.

However, Dijkstra's revelation of Castello's ties to witch hunters throws a wrench into the proceedings. Castello is revealed to be under duress, blackmailed into the marriage to protect a secret about his daughter from a previous relationship.

Geralt faces the choice of revealing this truth to Triss, either alone or with Castello. Regardless of his choice, the wedding is called off. Triss's reaction varies – disappointment in her fiancé or gratitude for his honesty, but ultimately deeming the marriage premature.

This unexpected turn of events could have been further explored to deepen Geralt and Triss's relationship and provide richer character development for supporting characters.