How do i find out my oldenburgs history?

You could try contacting the BSJA for details under his various names to see if they hold any records for him. Also try the website allbreedpedigree.com which shows photos of some of the horses featured. I think this could be the sire for you: a href="http://www.allbreedpedigree.com/chambertin2" rel="nofollow"http://www.allbreedpedigree.com/chambert…/a