Mexico's Supreme Court is reviewing whether a 1984 presidential decree restricting the export of works by iconic painter Frida Kahlo unconstitutionally infringes on the property rights of private owners. The case has drawn renewed attention following controversy over the Gelman Collection, a trove of artworks that left Mexico for Spain after being transferred to Banco Santander. The outcome could reshape how Mexico balances cultural patrimony protections with the legal rights of private collectors holding nationally significant art.