The Style of Prince outside the Royal Family

• "A Duke hath the Title of Grace; and being written unto is styled, Most High, Potent, and Noble Prince. And Dukes of the Royal Blood are styled, Most High, most Mighty, and Illustrious Princes."
• [A Marquiss] "hath the Title of most Noble, most Honourable, and Potent Prince"
• "An Earl had formerly the Title of Prince; but now it is Most Potent and Noble Lord, as also The Right Honourable and truly Noble."
• [A Viscount] "hath the Title of the Right Honourable and truly Noble, or Potent Lord"

• "A Duke is Stiled, and Esteemed Princely, and generally Gracious, and Excellent: the High and Mighty Prince, or Most High Potent and Noble Prince.
• [The Marquess] "is Stiled as the Duke, Earl, and Viscount are by the King (Consanguinei Nostri) our cousins: and if he be written unto, he is titled the most Noble, and Potent Lord: or the Right Honorable and Grand (or puissant) Seignor.
• [The Earl] "is stiled the most Noble and Potent Lord, or the thrice honourable and puissant Seignior, W. Earl of A. Viscount B. Baron F. and G. Knight of the thrice Noble Order of the Garter, &c.
• "the Viscount is stiled, The Right Honourable Lord, or The Right Noble and Potent Lord, or grave Seignior, &c." [Baron]: "The Right Noble Lord A. B. Baron D, &c."

• "A Duke hath the Title of Grace, and being writ to, is stil'd, most High, Potent and Noble Prince: And Dukes of the Blood are stil'd, most High, most Mighty, and Illustrious Princes." (p. 15) "Dukes are usually stil'd by the King or Queen our Right Trusty and Right entirely Beloved Cousin, and when of the Privy Council, then with the Addition of Counsellors." (p. 17)
• "A marquis hath the stile of most Noble, most Honourable and Potent Prince" (p. 38) "Marquisses are usually stil'd by the King or Queen our Right Trusty and Entirely Beloved Cousin, and when of the Privy Council, then with the Addition of Councellors." (p. 40)
• "An Earl had formerly the Stile or Title of Prince, as FDukes and Marquisses have, but now it is most Potent and Noble Lord: As also, the Right Honourable and truly Noble." (p. 44) "Earls are usually stil'd by the King (or QUeen) Our Right Trusty and right Well-Beloved Cousin; and when the Privy-Council, then with the Addition of --- and Counsellors." (p. 47)
• "A Viscount hath the Title of Right Honourable, and truly Noble, or Potent Lord. ... usually stil'd our right Trusty and well Beloved Cousin ... (p. 104)
• "Most noble and Right Honourable Barons ... Right Trusty and Well-beloved" (p. 149)