Historical clue formulations

• Operatic baritone Pasquale ___ — 2018-08-19
• Pasquale ___, baritone at the Metropolitan Opera — 2018-01-20
• Former Italian P.M. whose name means "beloved" — 2017-02-13
• Operatic baritone Pasquale — 2014-12-07
• Two-time Italian prime minister Giuliano — 2012-10-26
• Italian baritone Pasquale ___ — 1999-11-15