Psalter of Saint Louis

Large Beatus initial from the Leiden Psalter of Saint Louis, with inscription in French recording Louis' use.
Psalter of Saint Louis - BNF Lat10525 f1v, Cain and Abel making an offering to God

Two lavishly illustrated illuminated manuscript psalters are known as the Psalter of Saint Louis (and variants) as they belonged to the canonized King Louis IX of France. They are now in Paris and Leiden, and are respectively good examples of French Gothic and English Romanesque illumination.