Mitre
The mitre symbolises the divine right to rule, and the spiritual position of the emperor, who during coronation was consecrated symbolically as a deacon. The mitre fills the left and right and is open in the middle where the high arch passes. The mitre is made of gold, with a band of enamel work depicting birds and plants. The mitre is divided into four sections representing the high honours of Rudolf II. The first part shows him kneeling, while receiving the Imperial Crown of the Holy Roman Empire in Regensburg as Holy Roman Emperor. The second shows him riding onto the coronation hill in Pressburg (Bratislava) during his coronation as King of Hungary. The third shows his coronation procession through Prague as King of Bohemia, and the fourth depicts an allegory of his victory over the invading Turks. The inscription inside the arch reads in Latin: RVDOLPHVS II ROM(ANORVM) IMP(ERATOR) AVGVSTUS HVNG(ARIAE) ET BOH(EMIAE) REX CONSTRVXIT MDCII (Rudolf II, August Emperor of the Romans, King of Hungary and Bohemia, Constructed in 1602).
Read more about this topic: Imperial Crown Of Austria