Alice Walton has never run Walmart. She is 76, she holds part of the family’s roughly 44% stake in it, and Forbes estimated her fortune at $134 billion when it published the 2026 World’s Billionaires List on 10 March, making her the richest woman alive for the second year running. She is also the third-richest person at her own family’s table: Forbes put her brother Rob, 81, at an estimated $146 billion and her brother Jim, 77, at $143 billion, both of them ranked just ahead of their sister. Alice rose one place overall, to 14th. She spent the money on a museum in Bentonville and a medical school with her name on it.
That is the shape of the whole category. The women at the top of it mostly do not operate the companies that made them rich, and the ones who do are the exception worth naming.
How do you rank an heiress, and whose figures are these?
An heiress, for the purposes of this list, is a woman whose fortune came to her through a family: inherited from a father or grandfather, or passed to her on a husband’s death. That definition excludes the self-made, which matters at the top of the table, and it puts widows in, because control of the stake is control of the stake however it arrived.
Every number here is an estimate, not a disclosed balance sheet. Forbes and Bloomberg calculate them from share prices, ownership records and private-company comparables, and they revise them constantly. Where a figure comes from Forbes directly, it is attributed to Forbes. Where it appears only in a secondary summary of Forbes data, it is flagged as such, because rewrites drift. Three women frequently named in lists of this kind appear later without a dollar figure at all, for reasons given below.
One structural fact frames the rest. Forbes reported that 2026 was the first year its annual list contained two women worth more than $100 billion, and that both of them were heiresses: the only two women in a $100 Billion Club that now runs to a record 20 members, up from 15 the previous year. Forbes also counted female billionaires rising from last year’s 406, which was 13.4% of the ranking.
Why is Alice Walton the richest heiress in the world in 2026?
Because Walmart shares went up and the family never sold. Sam Walton died in 1992; the stock passed to his children, and Forbes reports the Walton family owns around 44% of the company. Alice took a different route from her brothers, who stayed close to the business. She founded the Crystal Bridges Museum of American Art in 2011 and the Alice L. Walton School of Medicine in 2021, and she has never held an operating role at the retailer.
Forbes has her at an estimated $134 billion for 2026, up from the position she took in September 2025, when she overtook the woman who had held the title for about two and a half years. It is the least eventful way to become the richest woman in the world: own a lot of one very large company, and stay put.
How rich is Françoise Bettencourt Meyers, and who runs L’Oréal now?
Forbes kept her at No. 20 overall in 2026, aged 72, on the far side of the $100 billion line. The Silicon Review reported that she added an estimated $18.4 billion over the past year to reach $100 billion, and that she had briefly become the world’s first female centibillionaire in 2024.
She is the only child of Liliane Bettencourt and the granddaughter of Eugène Schueller, who founded L’Oréal; Schueller died in 1957, leaving control to Liliane, who died in 2017 aged 94. According to The Brand Hopper, Bettencourt Meyers and her immediate family, including her husband Jean-Pierre Meyers and sons Jean-Victor and Nicolas, controlled 34.79% of L’Oréal’s total capital at the end of 2025.
The family’s earlier years were less quiet. The long-running Bettencourt affair, a legal and family dispute over gifts made by Liliane Bettencourt to the photographer François-Marie Banier, was reported exhaustively in France for years; the daughter filed a criminal complaint against her mother, and the two eventually reconciled. Both principals are long since past it, and the shareholding never moved.
What did move was the seat. At L’Oréal’s annual general meeting in April 2025, Bettencourt Meyers stepped down from the board after 28 years, transferring her seat to Téthys, the family holding company, and Jean-Victor Meyers was appointed vice-chair.
What did Julia Koch inherit from David Koch?
A 42.5% stake in Koch Industries, one of the largest private companies in America, which came to her and her three children when her husband died in 2019. She is 63. Databoks, summarising Forbes’ ranking of the richest women in the US, put her wealth at an estimated $81.2 billion, second among American women behind Alice Walton.
There is no share price to check that against. Koch Industries does not trade, so the number is an estimate built on comparable businesses, and it moves when the comparables move rather than when anything happens in Wichita.
Who is Iris Fontbona, and what does the Luksic family own?
Fontbona, born in 1942, is the matriarch of Chile’s Luksic family and the widow of Andrónico Luksic Abaroa, who built an empire in mining and beverages and died in 2005. She and her family inherited it, which made her the wealthiest person in Chile and the richest woman in Latin America. The holdings run through Antofagasta plc and Quiñenco.
Gazeta Express, summarising the Forbes 2026 ranking, reported that she climbed to fourth place among the world’s richest women with $52.6 billion (single source, from a secondary rewrite of Forbes data). Copper does the heavy lifting.
Why is Jacqueline Mars worth two different numbers?
Because the rankings she appears in disagree. Gazeta Express’s summary of the 2026 list has her at $49.1 billion, fifth in the world and down one place; Databoks, summarising Forbes on American women, gives $42.4 billion. Both are estimates of the same asset.
The asset is a third of Mars, Inc., the confectionery and pet-food company behind M&M’s, Snickers and Royal Canin, with annual revenues reported above $45 billion. She is 85, and the granddaughter of the founder. Private companies are valued, not counted.
Where does Miriam Adelson’s Las Vegas Sands money sit?
In casinos, and in a stake she did not originally hold. Forbes Australia’s top-200 billionaires listing puts Miriam Adelson and family at $37.5 billion, aged 80, in gambling and casinos. Her husband Sheldon founded and chaired Las Vegas Sands and died in January 2021 at 87, after which she became the majority shareholder.
The stake is the largest single holding in a listed operator, which means, unlike the Koch or Mars valuations, anyone can price it before lunch.
Is Abigail Johnson an heiress or a chief executive?
Both, which is why she sits slightly outside the ranking logic. She is the granddaughter of Edward C. Johnson II, who founded Fidelity Investments in 1946, and she is chairman and chief executive of the firm today, one of the largest asset managers in the world and still privately held.
No 2026 Forbes figure for her was verified in the reporting behind this piece, so none is printed here. Among the women on these lists, she is the one who took the job.
Why aren’t Susanne Klatten, Gina Rinehart and Savitri Jindal given figures here?
Because their precise 2026 numbers could not be checked against a primary Forbes or Bloomberg profile, and an unverified net worth is worse than no net worth at all.
What can be stated: Forbes describes Susanne Klatten, the daughter of Herbert and Johanna Quandt, as the richest woman in Germany, and reports that she owns 19.1% of BMW. That stake is public, disclosed and unambiguous. The dollar figure attached to it in aggregator round-ups is not, so it is left out.
Who is the richest self-made woman, and why isn’t she on this list?
Rafaela Aponte-Diamant, the Swiss shipping magnate who co-built MSC with her husband. Forbes put her at $44.5 billion in 2026 and moved her from No. 5 to No. 6 among the world’s richest women, and noted that she is the richest of just 122 female billionaires who made their own money rather than inheriting it.
She is here as a marker, not an entry. Of the ten wealthiest women on the planet, she is the one who did not receive a company.
What happens to these fortunes next?
Quietly, and in advance. Bettencourt Meyers handed her L’Oréal board seat to Téthys and watched her son Jean-Victor become vice-chair, while the family’s 34.79% of the capital, per The Brand Hopper’s reading of the end-2025 register, stayed exactly where it was. Julia Koch’s 42.5% of Koch Industries is already shared with her three children. The Waltons have spread theirs across two generations, with Christy and Lukas Walton holding alongside Sam Walton’s surviving children, and the family’s stake in the retailer still sits at around 44%.
None of that shows up in the annual rankings, which price stakes rather than families. The next list will say who the richest heiress is. It will not say who the next one is, because she already owns it.
