Barbara Gladstone’s North Fork Summer Home Hits Market at $12 Million

The late Barbara Gladstone’s name is back in the headlines this summer—not for her eponymous art galleries, but for her real estate. Just weeks after her elegant Chelsea townhouse came to market, the influential art dealer’s sprawling North Fork getaway has quietly followed suit, asking $12 million with Bridget Elkin of Compass.

Gladstone, who helped define contemporary art through her visionary gallery in Manhattan—there are outposts in Brussels and Seoul—and…