2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/169690Bremke and Xi determined the lowest two-sided cell for affine Weyl groups with unequal parameters and showed that it consists of at most |W_{0}| left cells where W_{0} is the associated finite Weyl group. We prove that this bound is exact. Previously, this was known in the equal parameter case and when the parameters were coming from a graph automorphism. Our argument uniformly works for any choice of parameters.18 pages, 1 figure, final version (minor changes). To appear in Representation theoryRepresentation Theorytext