Barring my faulty memory (and if I’m not lazy) I want to post prayers on Monday from all over Church History and then throughout the modern day, and then my own. This one comes from Clement of Rome (1 Clement 61.1-3).
You, Master, have given them the power of sovereignty through your majestic and inexpressible might, so that we, acknowledging the glory and honor which you have given them, may be subject to them, resisting your will in nothing. Grant to them, Lord, health, peace, harmony, and stability, that they may blamelessly administer the government which you have given them.
For you, heavenly Master, King of the ages, give to the sons of men glory and honor and authority over those upon the earth. Lord, direct their plans according to what is good and pleasing in your sight, so that by devoutly administering in peace and gentleness the authority which you have given them they may experience your mercy. You, who alone are able to do these and even greater good things for us, we praise through the high priest and guardian of our souls, Jesus Christ, through whom be the glory and the majesty to you both now and for all generations and for ever and ever. Amen.