Re: The 15th Century Margin Call: How the Medici Managed Counterparty Risk
Posted: Tue Oct 20, 2026 4:28 pm
Hard Asset Collateral
The Medici built their wealth on commercial credit and paper Bills of Exchange. The Templars operated essentially as the Fort Knox of the Middle Ages.
Their local branches (preceptories) were heavily fortified castles. Because they offered unparalleled physical security, they demanded hard assets to back their loans. Kings and nobles deposited crown jewels, royal treasuries, and highly sensitive diplomatic documents as collateral. The New Temple in London was so secure that it functioned as the royal treasury for King Henry II, and the Templars were even tasked with collecting state taxes on the Crown's behalf.
The Medici built their wealth on commercial credit and paper Bills of Exchange. The Templars operated essentially as the Fort Knox of the Middle Ages.
Their local branches (preceptories) were heavily fortified castles. Because they offered unparalleled physical security, they demanded hard assets to back their loans. Kings and nobles deposited crown jewels, royal treasuries, and highly sensitive diplomatic documents as collateral. The New Temple in London was so secure that it functioned as the royal treasury for King Henry II, and the Templars were even tasked with collecting state taxes on the Crown's behalf.