Question: What wealthy family descending from Mayer Amschel Rothschild purchased Gunnersbury Park?
Sentence (from "S. M. von Rothschild"): S M von Rothschild was a banking enterprise established in 1820 in Vienna, Austria-Hungary by Salomon Mayer Rothschild, the founder of the Rothschild banking family of Austria and a member of the Mayer Amschel Rothschild family of Frankfurt, Germany.
Relevant evidence: No