Lacroux was mentioned in the original draft for Highlander.

He was an Immortal of unknown age, who followed the movements of the Kurgan (then called the Knight). He knew how dangerous the Kurgan was and like Ramirez, he prepared young Immortals to face him. Lacroux, however, was eventually found and beheaded by the Kurgan.

Note: Lacroux appeared only in the original darft and is therefore not considered as cannon.