In Greek mythology, Arsinous (Arsinoos) of Tenedos is the great-hearted father of fair-tressed Hecamede, whom the Achaeans chose for Nestor when Achilles sacked the island — because in counsel Nestor excelled all. He is distinct from Arsinous of Mysia, father of Chromis and Ennomus.
Adapted from Wikipedia, "Arsinous" · CC BY-SA 4.0
I.Father of Hecamede
In Iliad 11, when Nestor and Machaon withdraw from the fight, fair-tressed Hecamede mixes a potion for them — the daughter of great-hearted Arsinous whom old Nestor took from Tenedos when Achilles sacked it. The Achaeans had chosen her out for Nestor because in counsel he was ever best of all.
Arsinous himself does not appear on stage; he is named only as Hecamede's father, fixing her Tenedian origin and the prize-allotment that attaches her to the Pylian king.
II.Homonym care
The atlas id arsinous-achaean is the Tenedian father of hecamede alone. Distinct from arsinous-mysian (Apollodoran father of the Mysian captains Chromis and Ennomus).