Chancellor of the Order of Australia "Chancellor and Principal Dame" if the incumbent is a 'Dame of the Order of Australia' (AD), or as "Chancellor and Principal Companion" if the incumbent is a 'Companion of the Order of Australia' (AC). The Order of Australia is the only Australian order of chivalry (although certain dynastic British orders of chivalry, such as the Order of the Garter, the Order of the Thistle and the Royal Victorian Order, may still be awarded to Australians by the Monarch). It was established on 14 February 1975 by the Monarch to recognise Australian citizens and other persons for achievement, meritorious service, or
Order of the Southern Cross honours system. It is considered the senior Brazilian National Order. During the Imperial period, the Order of the Southern Cross was not the highest ranking of the Imperial Orders, as it ranked below the Brazilian branches of the "ancient orders of chivalry", that originated with Portugal: the Order of Christ (the senior-most Order), the Order of Saint Benedict of Aviz and the Order of St. James of the Sword. Those Orders were shared by Brazil and Portugal; the Order of Christ was shared with the Holy See similar to the Austrian and a Spanish Orders of the Golden Fleece. However