Possible Clues:

• Marc Antony's adjective for Brutus
• High-ranking person over the road is most impressive
• Most refined
• Superlatively sublime
• Number sanctified is of the highest order
• '... the -- Roman of them all'
• Number those in heaven, the poshest or the best?
• Not one prosperous, but many of them at the 15?
• Lob this crookedly into the nest in the most exalted fashion
• Suit in case grander than all