Historical clue formulations

• Pope whose pontificate lasted less than one month in 1605 — 2021-01-07
• Pope with a 27-day pontificate — 2010-06-03
• Leader who died 27 days after his election — 2010-04-24
• Pope before Paul V, whose papacy lasted less than four weeks — 2007-08-06
• Successor to Clement VIII — 2005-05-08
• Paul V's predecessor — 2002-12-05
• Pope of 1605 — 2002-05-09
• Pope of 1605 — 2001-11-05
• Paul V's papal predecessor — 2001-05-03