Hírilorn

Hírilorn also known as Neldor was an immense beech tree in Neldoreth in Doriath next to Menegroth.

It had three smooth and equally-sized trunks with no branches close to the ground. Between the three great trunks lied a small house where the king had Lúthien imprisoned to keep her from meeting with Beren. Beren died in Lùthien's arms under it.

Hírilorn means Lady-tree or Tree of the Lady in Sindarin.

External Link

 * Hirilorn at the Tolkien Gateway