1983: Frederick and William Koch settle their lawsuit against brothers Charles and David, securing $1.1 Billion. This provides Frederick R. Koch with unmonitored liquidity to fund offshore and clandestine acquisitions.
1984: The Infrastructure Build (Miami). Frederick R. Koch incorporates the financial mechanisms required to launder acquired assets. He becomes VP of “Art Restoration Corp” in Miami.
1986 (Mansion Purchase): Frederick R. Koch purchases the historic Donahue/Woolworth Mansion in Manhattan for $5 million, securing private physical infrastructure for his collections.
1986 (Corporate Expansion): He establishes “International Art Trading” in Miami.
The Proof: Corporate documents confirm he was operating under the alias “Ed Koch” in Miami years before the Gardner heist. He did not invent the alias at the Florida flea market in 1991; it was his established corporate shield.
March 18, 1990: The Isabella Stewart Gardner Museum Heist (Boston).
Dec 21, 1990: Mary Robinson Koch (Frederick’s mother) passes away, triggering a cascade of estate and inheritance instability.