Historical clue formulations

• Name of Ohio State's buckeye mascot — 2026-01-04
• Believing his friend and ally had too much power, he led a party of conspirators to put an end to him — 2026-01-04
• Historic figure grouped with Judas in Dante's "Inferno" — 2024-08-30
• To Shakespeare he was "high in all the people's hearts" — 1998-12-20