The functional sterility of the romantic ideal of Aragorn and Arwen is further unmasked when contrasted with Sam and Rosie Cotton's relationship, which is said to produce thirteen children whose names are all meticulously preserved: Elanor the Fair, Frodo, Rose, Merry, Pippin, Goldilocks, Hamfast, Daisy, Primrose, Bilbo, Ruby, Robin, and Tolman. The Red Book records not just their names but in some cases their careers, marriages, and descendants.
More significantly, Tolkien himself declared Sam and Rosie's love "absolutely essential to the study of his (the chief hero's) character, and to the theme of the relation of ordinary life (breathing, eating, working, begetting)." [Tolkien's letter to Milton Waldman from 1951] This "rustic" love was central to Tolkien's understanding of how genuine fertility manifests in both literal and cultural terms.
The narrative significance of this depiction is obvious: Elanor Fairbairn served as Lady-in-Waiting to Queen Arwen, meaning she had intimate daily contact with the royal family's domestic life for a year, and then repeatedly on various occasions. She would have known the names, dates, personalities, and stories of Eldarion and his sisters. She would have witnessed the family dynamics, the children's responses to their parents' romantic absorption, which would ultimately lead to Arwen's eventual abandonment of them and their families. Yet somehow, in the copy of the Red Book that was edited and supplemented by Sam and Elanor and then edited further in Gondor by Findegil the King's Writer, all these details about Aragorn's and Arwen's royal children and grandchildren, still available from living contemporary witnesses, were systematically omitted, while the details of Sam's family tree were lovingly preserved!
This cannot be dismissed as a byproduct of mythic distance. Findegil wrote in Minas Tirith itself, within the very halls where Eldarion and his sisters walked and their children walked, their laughter and steps heard behind the very doors and windows of his study. Their omission, then, is not the result of forgetfulness or abstraction, but of narrative self-preservation. The myth of Aragorn and Arwen required the silencing of its own witnesses, lest the romance’s idealized perfection be disrupted by the mundane realities of its continuation. The myth demanded the erasure of the living evidence of its own cost.
This contrast exposes the fundamental difference between romantic idealization and actual mortal fertility. Sam's marriage to Rosie was never mythologized; it was simply lived, day by day, producing children who grew up to have their own meaningful lives and relationships and were recorded to have done so.
The "grand romance" of Aragorn and Arwen, by contrast, required such narrative energy to maintain its mythic status that it narratively consumed its own offspring. Their children had to be rendered politically and narratively irrelevant because their actual experiences would have revealed the romance's human cost. Eldarion is named as the necessary heir and plot device at his father's deathbed, but nothing beyond his existence and name is mentioned - with no birthdate, no details. His sisters remain unnamed and even uncounted! His wife and children (which he must have had, being 119 years old at Aragorn's death) receive the same treatment.
Sam the gardener produced a family so culturally fertile that his descendants took the surname Gardner in his honor and continued to flourish for generations. His "simple rustic love" created genuine abundance that could withstand documentary scrutiny and be narratively celebrated.
Meanwhile, the royal romance that was supposed to herald the dominion of Men and a new golden age produced children so redundant and irrelevant to their parents' story and their depicted romantic self-absorption that they had to be textually erased to preserve the very myth that created them!
This proves that the "grand romance" is actually sterile: not because it failed to produce biological children, but because it failed to produce children whose lives could be mentioned in detail without destroying the romantic mythology.
Sam's ordinary love story could afford to be documented in such detail because it had nothing to hide. The grand royal romance required systematic silence because examination would reveal its fundamental emptiness as a foundation for human flourishing. Which again proves my initial premise.