Nolondil

Nolondil (born Second Age 222) was the third son and youngest child of Vardamir Nólimon, heir to Elros Tar-Minyatur, first King of Númenor. His eldest brother took up the Sceptre as Tar-Amandil. Nolondil had three children: one daughter, Yávien, and two sons, Oromendil and Axantur.

Nolondil means "Devoted to Knowledge" in Quenya (from nólë = "lore, knowledge", -ndil = "friend, lover, devoted to").

Genealogy

              Vardamir Nólimon
                      |
      ________________|________________
     |           |          |          |
     |           |          |          |
Tar-Amandil   Vardilmë   Aulendil   NOLONDIL
                                       |
                             __________|__________
                            |          |          |
                            |          |          |
                          Yávien   Oromendil   Axantur