Which brewer is recognized for creating the first Quadrupel?

La Trappe is recognized for creating the first Quadrupel, a style that emerged from the Trappist brewing tradition in the Netherlands. The Quadrupel style is characterized by its rich, dark color and high alcohol content, typically ranging from 10% to 12% ABV. It features a complex malt backbone, often with flavors of dark fruit, caramel, and toffee, balanced by a subtle hop presence.

La Trappe, one of the original Trappist breweries, began producing their Quadrupel in the 1990s, which helped to define and popularize the style. The brewery's adherence to traditional methods and high-quality ingredients has contributed to the Quadrupel's reputation as a noteworthy and respected style within the craft beer community.

In contrast, the other breweries listed, such as Boon, Cantillon, and Drie Fontienen, are known for their contributions to different styles of Belgian beer, particularly lambics and gueuze, rather than creating the Quadrupel style itself.