The heirs to a centuries-old Belgian automotive empire were elevated to vice chairmen of their family’s eponymous company, D’Ieteren Group, about a decade ago. But the parity lasted just three years

The great wealth transfer looks to be a source of great trouble for family offices, as 54% say their next generation is insufficiently qualified to steward their family wealth and legacy, according to a study from RBC and Campden Wealth.

In his time atop New World, Adrian Cheng, a Harvard-educated “it” boy of the Hong Kong art scene, struggled to prove himself in business the way his late grandfather and, eventually, his father did.

New World Development Co. CEO Adrian Cheng has resigned, after the third-generation heir steered the Hong Kong property developer to its first annual loss in two decades. 

Jim Walton, 76, the youngest son of founder Sam Walton, leads the way with $102.6 billion; while Rob Walton, 79, is at $100.4 billion, according to Bloomberg’s index.

The succession battle playing out in a Nevada courtroom this month between Rupert Murdoch’s four oldest children could ultimately decide who controls Fox News and The Wall Street Journal, two of the most influential U.S. news outlets.