The culture and knowledge of the Silvan elves was enriched by the arrival of Sindarin Elves from west of the Misty Mountains, and the Silvan language was gradually replaced by Sindarin. Amongst these arrivals was Amdír, who became their first lord, as well as Galadriel and Celeborn, who fled the destruction of Eregion during the War of the Elves and Sauron. In the Third Age, Amroth, the former Lord of Lothlórien, went to the south of Middle-earth with his beloved Nimrodel, but drowned in the Bay of Belfalas after she went missing in the Ered Nimrais and never returned. Control of Lothlórien passed to Galadriel and Celeborn. Galadriel's Ring of Power preserved the land from death and decay, and warded off Sauron's gaze.