Board Thread:Warhammer 40k General Discussion/@comment-5846164-20130912160556/@comment-108.20.11.98-20130919193320

I'll put it simply but Naithan02 got it. The sucessors that the Raven Guard do have are listed. But the sucessors of the Ultramarines are not fully listed because Games Workshop hasn't created them all and doesn't want to because people like to make their own chapters and be lore wise correct. But most are Ultramarine dessendants at this point although the Imperial Fists are a significant second.

There are 1,000 space marine chapters in the Imperium; the Raven Guard and their sucessors make 13. Thats very rare to me.