The Walmart family fortune has grown by 66% since last year to a record $432 billion. Jim, Rob, Alice, and the other Waltons are richer than the royal families of Abu Dhabi and Qatar.

Luigi Mangione’s family is “beloved’’ Baltimore royalty, fueled by a real-estate empire and history of contributing millions of dollars to healthcare — the very industry that allegedly ...

Abu Dhabi's ruling family, the Al Nahyans, topped the ranking last year with an estimated $305 billion fortune that dwarfed the Waltons' $260 billion. The two clans switched places this year with ...