Findis and Irimë were Elves, daughters of Finwë, High King of the Noldor and Indis; sisters of Fingolfin and Finarfin and half-sisters of Fëanor. Findis was the first child of Finwë and Indis, and Irimë was the third one. Little is known about them except that Findis stayed with Indis and Finarfin in Valinor, while Irimë went to Middle-earth with Fingolfin. Findis is a combination of her parents' names. Irimë's mother-name was Lalwendë or in shortened form Lalwen, and by this name she was generally known. In some versions Irimë is called Irien which may have been her father-name.
Irimë may have been the mother of Aranwë, who was in turn the father of Voronwë.
Findis apparently still dwells in Aman. Irimë's fate is unknown, but she may have been slain or returned to Valinor after the Dagor Bragollach ("Battle of Sudden Flame"). Neither appear in the published The Silmarillion.
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Glorfindel was born in Valinor sometime during the Years of the Trees. His parentage is unknown; due to his apparent nobility and a note that he was kin of Turgon it is possible that he was the son of one of Finwë’s daughters, Findis or Irimë. This would account for his distinctive golden hair as well, as Indis their mother was a Vanya. It would also make Glorfindel the possible uncle of Voronwë (who may have been the grandson of Irimë), the only surviving mariner who sought Valinor. Nevertheless, his parentage is and always will be a matter of speculation, unless new manuscripts turn up, as Tolkien never explored that matter very deeply.