Mary has authority over the angels and the blessed in heaven.
As a reward for her great humility, God gave her the power and the mission of assigning to saints the thrones made vacant by the apostate angels who fell away through pride.
Such is the will of almighty God who exalts the humble, that the powers of heaven, earth and hell, willingly or unwillingly, must obey the commands of the humble Virgin Mary.
For God has made her queen of heaven and earth, leader of his armies, keeper of his treasures, dispenser of his graces, worker of his wonders, restorer of the human race, mediatrix on behalf of men, destroyer of his enemies, and faithful associate in his great works and triumphs.
Saint Louis de Montfort, True Devotion to Mary