The Market Value of a Ninth Cousin: Who Paired Sydney Sweeney With Marilyn Monroe?

For weeks a single sentence has been circulating in entertainment circles: Sydney Sweeney is a distant relative of Marilyn Monroe. A private genealogy platform says the two women are “ninth cousins, once removed.” That is enough to press the share button — on one side the golden-age icon of Hollywood, on the other a star of the present. Put the two names in one line and attention follows. But when I started turning over the paperwork behind the claim, what I found resembled an advertising blueprint more than a genealogical record. The autopsy begins where the applause stopped. The claim comes from MyHeritage, a private genealogy-research platform. Its research director, Roi Mandel, released the finding. In ordinary genealogy, such a claim is tested through independent researchers, primary documents, and peer review. None of that is cited here. The company that produced the research is also the company that publicised it. That alone is a signal. MyHeritage is not new to this. It has previously made headlines by revealing the “secret kinship” of several celebrities — sometimes an actor, sometimes a singer — linking them to a historical figure. There is nothing suspicious about a company wanting attention for its business; attention is its product. Genealogy platforms run on subscriptions; more users means more revenue, and users multiply when the company's name stays in the news. A recent pattern confirms this. Look through MyHeritage's published findings and you see the same kind of research year after year — an actor linked to a statesman, a singer to a writer. The faces change; the mould stays. That tells you the subject is not a personal discovery but an institutional habit. The question is only this: why do we accept that attention as “discovery”? In entertainment news the mould is familiar. One star, one icon, and a striking connection between them — those three elements hold up a story that travels under its own weight. Journalism calls it earned media: coverage obtained without spending on advertising. MyHeritage does not build new research each time; it builds new headlines. The strategy is simple, and that is why it works. Start with the arithmetic. “Ninth cousins, once removed” means a common ancestor many generations back — here, a seventeenth-century settler, Ezra Perry. If we take an average generation gap of twenty-five to thirty years, ninth cousins means a shared ancestor more than two hundred and fifty years ago. At that depth, kinship is so thin that almost any two people can be linked — especially if both descend from settler families of a particular region. So the word “kinship” here does not describe a deep blood bond; it describes an arithmetic coincidence that a platform strategically went looking for. The relationship “exists,” but its weight is near zero. This is where marketing skill lies — preserving the accuracy of the number while manufacturing an inflated meaning. Making a truth look bigger without telling a lie is the sharpest weapon of modern promotion. Such discoveries are not rare. Celebrity genealogy is a growing industry, and its method is almost always the same: trace a famous person's family tree back as far as possible, then note that some branch eventually meets a modern star. The further back you go, the more matches you find — that is a rule of statistics, not a mystery. There is an urgent question here: if the relationship is genuinely so distant, why the elaborate staging? The answer is simple — close relationships do not create buzz. Siblings do not make headlines; ninth cousins do. The distance itself is the asset, because distance leaves room for imagination. The reader builds a bridge between the two women in their own head, and that imagination is the cheapest advertisement the company could buy. The second layer is clearer and cleverer. The coverage compares Sweeney's red-carpet outfit to Monroe's. But her stylist, Molly Dickson, has herself confirmed that the look was deliberately Monroe-inspired. The resemblance presented as a “natural coincidence” was designed in advance. The story is manufacturing the very comparison it reports — a self-reinforcing loop in which the stylist builds the dress and the dress becomes visible proof of “kinship.” Put the two layers together and a clean picture forms. Genealogy supplies the structure — a document-based, seemingly harmless relationship. Styling supplies the image — two faces from two eras in one frame. One without the other is half a story. Together they build a narrative that does not force the reader to verify, only to believe. To the reader it is a single story; on paper it is two separate acts of work. It is also worth remembering what real genealogy looks like. A genuine researcher assembles a claim from multiple independent documents — birth certificates, church records, census returns — and other researchers try to disprove it. Here the process is reversed: the headline is fixed first, and the documents are matched to it afterwards. That reversed order is the real difference. There is a timing signal too. The alignment between this story and Sweeney's professional momentum is not mere luck. In the entertainment industry, when stars arrive with new work — a new film, a new season, a new contract — human-interest stories of this kind are often seeded. Behind every headline's quota of “love” sits a quota of calculation. Who gains what is never an irrelevant question. Now let me question my own side. Perhaps this suspicion is just bitterness; perhaps I am overthinking a harmless, fun story. For fans, a cultural bridge between Sweeney and Monroe does no harm. Both stood at the centre of their era's camera, both are emblems of a certain exhibitionist persona — Sweeney a new version of it for the modern age. No one is harmed, no one deceived. Entertainment, after all, means a little story. Let me keep another possibility open. Perhaps the story is not fake and our suspicion is wrong. If Sydney Sweeney genuinely knew her ancestors' story, if the connection carried personal meaning for her, it would deserve respect. But there is no evidence of any of that anywhere — the star herself has said nothing; only a company has spoken. An institution's statement in place of a person's feeling: that is where a personal story becomes an institutional one. Still, one distinction remains. A cultural bridge and a marketing tool are not the same thing. If MyHeritage's “discovery” is built on the same mould every time — a celebrity, an icon, a sensational relationship — then it is not research but a publishing rhythm. More importantly, when stories like this circulate as fact, readers slowly lose the true value of genealogy — where real discovery means decades of documentary labour, not a viral headline. My real objection is not about the truth of the facts but about their meaning. A ninth-cousin link does not prove where Sweeney's talent came from, nor how Monroe's legacy survives. It only places two names in one sentence. The rest is the reader's imagination. The tape is patient; it waits for the consensus to get bored. So what is this news really worth? Probably entertainment, not history. And as entertainment it succeeds — because it worked. In the future, whenever a company links a star to a legend in the name of “research,” the reader's first question should be: who is saying it, and what do they gain by saying it? The ninth-cousin link may stay on the record; but a headline's market value is not always set by the record — it is set by marketing. What does this story finally teach us? Perhaps it forces us to think about the economy of attention. How many stories reach us each day, and how many of them exist to sell someone something? The habit of measuring the distance between headline and fact is the modern reader's strongest tool.