Agnes of Austria was a member of the house that ruled the Holy Roman Empire beginning in what year?
Agnes of Austria (1281–1364) Agnes of Austria (18 May 1281 – 10 June 1364) was a daughter of Albert I of Germany and his wife Elisabeth of Tirol. She was Queen of Hungary by marriage. She was a member of the House of Habsburg.
Principality of Reuss-Greiz The Principality of Reuss-Greiz (German: "Fürstentum Reuß-Greiz" ), called the Principality of the Reuss Elder Line (German: "Fürstentum Reuß älterer Linie" ) after 1848, was a sovereign state in modern Germany, ruled by members of the House of Reuss. The Counts Reuss of Greiz, Lower- and Upper Greiz (German: "Reuß zu Greiz, Untergreiz und Obergreiz" ), were elevated to princely status in 1778. Its members bore the title "Prince Reuss, Elder Line", or "Prince Reuss of Greiz". Similarly to the more numerous Reuss Younger Line, the male members of this house were all named "Heinrich", in honour of Heinrich VI who had benefited the family, and were numbered sequentially by birth, rather than by reign, the last series beginning with Heinrich I (born 1693) and ending with Heinrich XXIV (1878–1927).