- Founded by Stanislaus Augustus Poniatowski of Poland in honours of Polish (and his own) Patron Saint - Stanislas. Born in Crakow in 1030, Stanislas was a Roman Catholic Prelate, and a Bishop of Crakow. in 1079, he denounced his King (who then was Boleslav) for misdeeds and excommunicated him.i After being murdered for this feat of valour, Stanislav was later canonized (1253), and since then was considered a Patron Saint of Poland.
- The Order had 3 classes at first, but in 1815 a Fourth Class was added. This change was reversed back in 1839, and the Fourth Class was abolished.
- After 1831, the Order was joined together with other Russian Orders, undergoing just a slight change in design: center monogram became 'SS' (standing for Sanctus Stanislaus), converted from 'SAR' (standing for Stanislaus Augustus Rex).
- Insignia of the Order was awarded for distinguished civil and military services, as well as for excellence in preserving Christian virtues. Military type insignia came with swords, and, in some exceptional cases, might also have the swords surmounted.
- Only First Class of the Order carried hereditary nobility, as of 1845 Statues. Before the 1845, all Classes had equal hereditary rights.
- Non-Christian version of the Order had 'SS' in a center replaced with the Imperial Eagle.
- The annual feast day of the Order was celebrated on April 25th of each year.