Historical clue formulations

• Catherine the Great, e.g. — 2026-08-17
• Wu Zetian of the Zhou dynasty, for one — 2026-07-10
• Holy Roman ___, title for Maria Theresa — 2025-07-03
• Title for Maria Theresa of Austria — 2017-06-13
• Catherine the Great, for one — 2016-03-07
• She rules — 2014-07-20
• Akihito's wife, e.g. — 2009-04-08
• Catherine the Great, e.g. — 2003-09-17
• Catherine, for one — 1997-11-06