There was a Greek scientist way back in the day named Galen, but at the moment, that's the only person of significance I can think of associated with that name.
Galen was a greek physician...in the passing of the technomages
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Galen had no name before he became a chrysalis staged mage and choose the name Galen because his greatest purpose in becoming a mage is to heal....but then he changed his mind because he wasn't really any good at healing(why?Coz he's destructo boy,that's why) but was stuck with the name Galen
So I suppose Alwyn and Elric and Galen's father used to call him "Hey,Boy!!!Bring me a glass of water....good boy!!!" (boy,that's one dumb joke)