Historical clue formulations

• ___ May, former British P.M. — 2026-03-08
• British P.M. between David and Boris — 2024-05-10
• May in England — 2019-06-07
• Russell of "Black Widow" — 2015-07-29
• 18th-century Hapsburg monarch Maria ___ — 2014-02-21
• The Little Flower of Jesus — 2009-05-02
• "The little flower of Jesus" — 2004-05-15
• Patron saint of aviators — 2002-08-31
• Maria ___ (Hungarian queen) — 2002-02-07
• Saint known as the Little Flower of Jesus — 2000-09-17
• Last empress of Brazil — 1999-07-22
• "Black Widow" actress Russell — 1996-07-15
• Saint of Avila — 1995-01-16
• Actress Russell — 1994-11-11