The idea for this guy came about when I was re-reading one of the older RPGs on Wolf Planet (On The Run) when the image and backstory for him emerged. He is also a former Solar Federation captain who, even though his planet lost in the end, continued fighting despite that.
Franz Gerwulf is this guy's name (and a BIG thanks goes to Ligthingtooth for that!)
Originally a captain in the Solar Federation, he'd also come from Harlock's homeland (but he isn't a part of the family, despite his uncanny resemblance to Harlock...). His ancestors had sworn allegiance to the Pirate Knight, thus there is a great deal of loyalty and friendship between the two clans. Franz came about his partial 'Harlock Scar' in a fencing accident (or, not quite an accident, since even then, Darghund held a grudge against Harlock...and considering the governor's actions towards Black Jack, later on). He was also originally supposed to have married Mia, Isaak's mother, but, before they could do so, the First Illumidas War reached earth. When the earth fell, he refused to surrender his ship and crew to his sworn enemies, and with the agreement of his crew, they flew even deeper into space; becoming outlaws themselves.
The flag that flies over his ship is that of the 'Walking Death' (a skeleton carrying a broadsword), with a wolf carrying a spear behind it. (His last name, by the way, means 'Spear-Wolf'). This is also his family crest