Board Thread:Warhammer 40k General Discussion/@comment-69.143.134.163-20150419161351/@comment-28917471-20160702173431

84.219.231.201 wrote: Are you saying that the emperor didnt know how many baby primarchs there was in the gestation capsules?.

another thing is according to this wiki the primarch of the 11. Legion was found between corax and alpharius. The Emperor knew the number of his sons, but something could have happened to the capsules during the Warp transaction. Also, there were 20 Legions, meaning there were 20 Primarchs. Alpharius and Omega count as one.