Definition of pragmatic sanction in English:

pragmatic sanction

noun

historical
  • An imperial or royal ordinance or decree that has the force of law.

    • ‘There were other gains for the Bourbons in Italy, and the only cost to France was recognition of the pragmatic sanction, naming Maria Theresa, daughter of Charles VI, as sole heir to the Habsburg hereditary lands.’

Origin

Translating Law Latin pragmatica sanctio.