Possible Clues:

• Longtime Hapsburg domain: Abbr.
• 1,000-plus-year realm: Abbr.
• It dissolved when Francis II abdicated: Abbr.
• Its spiritual head was the pope: Abbr.
• Realm from 800-1806 A.D.
• Much of central Eur., once
• Hapsburg domain: Abbr.
• Eur. domain from 800 to 1806
• Realm destroyed by Napoleon: abbr.
• Realm ruled until 1806, for short