The LAST meeting of the White Council

[Valandil]

Appendix B of LOTR shows 2953 as the last meeting of the White Council.

However - I think they met one more time. At least the major players. Although it was not a regularly scheduled, pre-announced meeting.

In late August of 3019, Gandalf, Galadriel, Celeborn, Elrond - and other prominent Elves of Elrond's household - met Saruman while traveling with the Hobbits back to all their own homes.

I only just realized that with this meeting happening in north Dunland, which is just south of Eregion - where the Elven Rings were made, all those long years before.