Blanche of Castile was Regent for her son, Louis IX from 1226 until 1234, and and again from 1248 until 1252.
Anne de France,Duchess de Bourbon was Regent of France for her brother,Charles VIII from 1483-1491.
Louise de Savoie,Duchess d'Angoulême & mother of François I was Regent in 1515,1523 and 1524-1526.
Catherine de Médicis was Regent of France in 1552 & 1554 for her husband Henri II of France.Catherine was Regent again in 1559 and 1560-1563 and 1574-1575 for her sons ,François II,Charles IX and Henri III.
Marie de' Medici was Regent from 1610-1614 for her son Louis XIII.
Anne of Austria was Regent from 1643-1651 for her son,Louis XIV.
Maria Theresa of Austria was Regent in 1672 for husband Louis XIV during the Dutch Wars.
6th of April,1199 -Death of Richard the Lionheart