In life he was a young crusader. After his Embrace, Rasalon was imbued by his sire with the mission to spread solidarity among his clan, so he traveled around much of Europe and kept a journal on all of his discoveries in order to educate his progeny. Telling other Nosferatu that his sire was a childe of the Matriarch so that they would not know he was of a Nictuku line, Rasalon defended that not all of the Nictuku were monsters.
Rasalon and his sire communicated through the smell and taste of their blood, a subtle code few could fathom and none could spy on. This practice was mentioned as the "Blood Apocrypha".