Philippe I struck these deniers at Château-Landon, a royal stronghold in the Gâtinais that came to the French crown through his father Henri I. The Gâtinais acquisition of 1055 was one of the more consequential territorial gains of the early Capetian period, and the mint there served partly as an assertion of royal presence in recently absorbed land. Philippe's reign saw the crown's minting authority fragmented across numerous local issues, each tied to a specific domain — Château-Landon among the more obscure of them, which accounts for the relative thinness of surviving examples compared to the Paris and Orléans output.
Philippe I struck these deniers at Château-Landon, a royal stronghold in the Gâtinais that came to the French crown through his father Henri I. The Gâtinais acquisition of 1055 was one of the more consequential territorial gains of the early Capetian period, and the mint there served partly as an assertion of royal presence in recently absorbed land. Philippe's reign saw the crown's minting authority fragmented across numerous local issues, each tied to a specific domain — Château-Landon among the more obscure of them, which accounts for the relative thinness of surviving examples compared to the Paris and Orléans output.