Louis de la Croix was a nobleman from Toussaint. As a young man he was a knight errant and formed a knightly team along with Count Vladimir Crespi, Ramon du Lac, and Milton de Peyrac-Peyran. Sometime later they received a mission from the ducal couple to deport Sylvia Anna, older sister of Anna Henrietta and who was said to be under the influence of the Curse of the Black Sun, beyond the boundaries of the duchy. He and his friends fulfilled the task and took the princess to Caed Dhu, where they left her in the cold in a ragged lace dress and without any money, hoping that she would soon die. He implicitly supported his friends, but had no pity for enemies.
He believed that the new times and customs required that knights change their attitude towards life and entrepreneurship, which he believed should become a sixth chivalric virtue. He alone resigned from being a knight and took up the grain trading business using a mill that he inherited from his mother and which made him a sizable fortune. Palmerin de Launfal maliciously even nicknamed him "Sir de la Stingy".
Blood and Wine expansion Edit
He first met Dettlaff van der Eretein as a customer of the young Bootblack in Beauclair, where they quickly became friends. One day he went with him to see the old mill. During the inspection of the building Dettlaff killed the count by piercing his heart, then stuffed a bag of florens from different provinces of Nilfgaard down his throat before quartering his body and throwing the pieces into the river. Overcome by guilt for murdering a friend, Dettlaff then cut off the hand that pierced the count's heart and threw it into the river.
The remains of the count were noticed by the innkeeper at The Cockatrice, who called the Ducal Guard. The body parts were then fished out of the river and took to Corvo Bianco, which had been temporarily converted into a morgue. Geralt investigated the shallows and networks with Milton, where the body was found, and noticed a monogrammed handkerchief by which the corpse was identified.