The history of this brewery is connected to 2 trappist monasteries, one gave it's name, the other gave it's beer. Shortly after the Second World War, the Trappist Monastery St.Sixtus in Westvleteren was looking for somebody to commercialise their beer because they did not want to do that themselves anymore. They gave a license to the cheese factory, and Brewery St.Bernard was founded. The brew master from Westvleteren, Mathieu Szafranski (from Polish origin) became a partner in the brewery and brought along the recipes, the know-how and the St.Sixtus yeast strain. They started selling the trappist beers under the brand names Trappist Westvleteren, St.Sixtus or even later Sixtus. During a period of 46 years they brewed and commercialised the beers, while the monks continued to brew for themselves and for sales to 3 pubs in the neighbourhood, amongst which was De Vrede, just next to the monastery. In 1992 the license came to an end and since then they were brewing the same beers, with the same recipes, but under a different brand name: St.Bernardus.