Almarian was the daughter of a Númenórean sailor Vëantur, the Captain of the King's Ships under Tar-Elendil. She was married to Tar-Meneldur and she was mother of Aldarion, the future Tar-Aldarion, the sixth King of Númenor.
She cared little for ships and the sea, though her father was a great sailor. She married and gave birth to a son, Aldarion, and he soon desired to follow in the footsteps of her father Vëantur which later displeased his father, who wanted him to marry and settle down. However, Almarian supported her son in everything he did and later served as a mediator between her husband and his son on the matters regarding his life choices.