Flags of the Holy Roman Empire
In 1804, Napoleon Bonaparte declared the First French Empire. In response to this, Emperor Francis II of the Habsburg dynasty declared his personal domain to be the Austrian Empire and became Francis I of Austria. Taking the colours of the banner of the Holy Roman Emperor, the flag of the Austrian Empire was black and gold. Francis II was the last Holy Roman Emperor, with Napoleon forcing the empire's dissolution in 1806. After this point, these colours continued to be used as the flag of Austria until 1918.
Austrian Crown Jewels
The Imperial Regalia are the insignia of the Holy Roman Empire. After 1438, the Holy Roman Empire was ruled by the House of Habsburg, with only one brief exception. From 1508, after his election, the German King no longer called for the coronation by the Pope either, but considered himself Roman emperor directly. The crown was probably used for the first time for the coronation of Konrad II; the last time was for Franz II in 1792.