Early modern period
In the early modern period, the Holy Roman Empire was a union of territories in Central Europe under a Holy Roman Emperor the first of which was Otto I. The last was Francis II, who abdicated and dissolved the Empire in 1806 during the Napoleonic Wars. Despite its name, for much of its history the Empire did not include Rome within its borders.
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.