This is the first part of a new series:
"Ruling Queens of Númenor & Silmariën"
This is obviously Silmariën.
Silmariën was the daughter of Tar-Elendil, the fourth King of Númenor. From the days of Elros Tar-Minyatur and up until that moment the first-born child had always been also the first-born son, and the one to inherit the Kingship. Nonetheless, even if Silmariën was the first-born child of the King, she was also a female and thus not entitled to inherit. At that time, and following the model of the great Elven Kingdoms, the rule of the land was inherited via agnatic primogeniture (to be inherited by the first-born son, excluding all lines descended from females, unless male lines were completely extinguished). Because of this reason, Silmariën was passed over in favour of her brother Tar-Meneldur.
But it is said that she was Tar-Elendil's favourite child, or perhaps that is a legend, and it was truly because the Kings of Nñumenor of earlier days were far-sighted, but it is the case that Tar-Elendil did give the Ring of Barahir, a capital heirloom of the line of Elros, to Silmariën for her and her children to keep. She perhaps received too the sword Narsil then, but what is sure is that at the time of her marriage to Eradan they were made the first Lords of Adúnië, second only to the King in power. The line of the Lords of Adúnië would withstand the trials of time; they would become the leaders of the elendili (or elf-friends) and survive to see the Fall of Númenor. Then extinguished all royal lines, the descendants of Silmariën would become Kings in Middle –Earth in the Númenorean realms in exile: Elendil, and his sons Isildur and Anárion.
As you can see (I hope) she is wearing the Ring of Barahir. The future tree of Gondor is embossed in the pillar she rests upon, and the winged helmet is a foreshadowing of the future winged crown of Elendil.