Royal Alex (Oldenburg - Furioso line)

Hi All, I posted this originally in Horse Breeds but was suggested to try here for a response.... I was curious about researching into my guy's parentage/lineage a little further.

Anyone heard of the sire Royal Alex (chestnut oldenburg stud, blaze, four white socks), he's apparently out of Silk Stockings (TB), by Furioso (Oldenburg) but the whole Furioso thing has confused me as I can find both a TB stud registered as Furioso and an Oldenburg stud by the same name. Any thoughts?

Haven't been able to find much on the web so far...