[Thinlómien]

But Celeborn was in some way close with Elrond and Gandalf, or that's the feeling I get reading the part in LotR where they all sit like stones in tye night and discuss the past times. I think that implies that Celeborn had had plenty of dealings with Gandalf and Elrond (which would be politically wise and which the Lórien-part in LotR implies) and thus I see no reason for him to be excluded from the council.