pragmatic sanction(redirected from Pragmatic Sanction of St. Louis)
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An edict or decree issued by a sovereign that becomes part of the fundamental law of the land.
[Translation of Late Latin prāgmatica sānctiō, imperial decree referring to the affairs of a community : Latin prāgmatica, feminine of prāgmaticus, referring to civil affairs + Latin sānctiō, ordinance.]
(Government, Politics & Diplomacy) an edict, decree, or ordinance issued with the force of fundamental law by a sovereign
(in European history) any of various royal or imperial decrees with the effect of fundamental law.
1713 An attempt to guarantee succession to the Austro-Hungarian throne of Maria Theresa.