Mancipium Mariae (Latin the slavery/a slave of Mary) – a Christian devotion. Its rules, referring to older traditions, were formulated from the inspiration of Jesuit Kasper Drużbicki in following works: * Franciscus Phoenicius , Mariae mancipium, Lublin 1632 * (Chomętowski), Pętko Panny Maryjej albo sposób oddawania się Błogosławionej Pannie Marii za sługę i niewolnika, Lublin 1632 In ancient Rome mancipium meant the relation of subjection of one person to another, existing because of mancipatio (the reverse process is the emancipation), as well as a person subjected thus.