Amroth and Nimrodel - "Amroth was King of Lórien, after his father Amdir was slain in the Battle of Dagorlad [in the year 3434 of the Second Age].  His land had peace for many years after the defeat of Sauron.  Though Sindarin in descent he lived after the manner of the Silvan Elves and housed in the tall trees of a great green mound, ever after call Cerin Amroth.  This he did because of his love for Nimrodel.  For long years he had loved her, and taken no wife, since she would not wed with him.  She loved him indeed, for he was beautiful even for one of the Eldar, and valiant and wise; but he was of the Silvan Elves, and regretted the incoming of the Elves from the West..." ~Unfinished Tales (The History of Galadriel and Celeborn)