Given the task definition and input, reply with output. In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

The Lemp Mansion (3322 DeMenil Place, St. Louis, Missouri) is a historical house in Benton Park, St. Louis, Missouri. It is also the site of four suicides by Lemp family members after the death of the son Frederick Lemp, whose William J. Lemp Brewing Co. dominated the St. Louis beer market before Prohibition with its Falstaff beer brand. The mansion is said to be haunted by members of the Lemp family. Question: When was the brewery founded by the family who resided in the Lemp Mansion founded? Answer: 1838
The Lemp Mansion 3322 DeMenil Place, St. Louis, Missouri is a historical house in Benton Park, St. Louis, Missouri.