Ok so I felt interested about this tribe, especially when I searched it up on Google and practically found nothing. Some better sifting revealed only very little about the Catuvellauni, especially the Casse in particular. Apparently the Casse were only a 'subtribe' of the Catuvellauni, and there is very, very little information about them on the web at least.

Can anyone tell me were the EB team got their info from? I looked at the bibliography thread but there wasn't anything directly related to the tribe. Thanks and sorry if this has been asked before.