Fabulonius was born somewhere in Switzerland in the spring of 1974. The exact date and circumstances of his birth are unknown since he was immediately placed in a basket and tossed in a river.

Young Fabulonius rode the pristine Alpine glacial melt waters for hundreds of miles before a young Milanese woman discovered the basket along the banks of the river Po. Some say it was this first early journey to Milan that fueled his love for both exploration and fashion. The woman would raise Fabulonius as her own, naming him Fabulonius after her father and to reflect his Swiss heritage.