User blog comment:Rafe Adler/"The British Invasion" Discussion/@comment-24834479-20170407041029/@comment-26982641-20170407073319

Michael was definetely the big brother. Both according to season 5 and Kripke. Gabriel specifically explained that to Sam and Dean and even Michael called Lucifer little brother etc. Writers are just doing sh*t work. Still, we can't take this statement as a retcon. Should be placed on Canon Disp. page.