Lambert II von Gleichen-Tonna

Lambert II, also numbered Lambert III (c.1160–14 September 1227), was the son of Count Erwin II of Gleichen. He appears in charters as count of Erfurt in 1191 and from 1195 as count of Gleichen, and he married Sophie of Weimar-Orlamünde.

Lambert died on 14 September 1227. His son Ernst IV succeeded him in Gleichen and Tonna, while another son, Heinrich of Gleichenstein, founded a younger line.