While travelling on this solemn mission from place to place and house to house of the religious gentry of Scotland, Knox would seem to have made Edinburgh his headquarters, and preached there from time to time, not always secretly. He had here "a greater audience than ever before" in "the Bishop of Dunkeld's great lodging," that ancient habitation from which Gawin Douglas, the poet-bishop, had watched and waited while the fight went on within the gates of the Nether Bow, and from which he rushed out to rescue the other prelate whose corslet rang under his rochet. Strange association, yet not inappropriate; for the mild Bishop of Dunkeld had also found many potent words to say against the abuses of the Church, though the new presbyter who now took his place was rather of Beatoun's warlike mettle than of Douglas's. The nobles who came thither to hear the preacher were so "weill contented" with his doctrine--which is his own moderate version of what was no doubt an enthusiasm of grave approbation--that they seem to have imagined, in that solemn simplicity which belongs to fresh conviction, that he might perchance, could she but hear him, move the Regent Queen herself, Mary of Guise, an unlikely convert no doubt. He was accordingly exhorted by three gentlemen, specified as the Earl of Glencairn, the Earl Marischal, and Harye Drummond, to write a letter to the Queen, which Knox, always eager for the pen, and full of matter boiling to have utterance, immediately did. It is difficult not to think of the _sancta simpilicitas_, which rarely belongs to such a group of men, when we think of the grave trio of advisers, and the still graver but fiery prophet-preacher, making this wonderful appeal. It was less wonderful in him who loved nothing so much as to write when he could not be preaching, to set forth those high-handed arraignments before the visionary tribunal of the one true and only faith, of whomsoever he could address, queen or peasant; but it is strange that men of the world, and of the society of their time, should have thus thought it possible to convert a lady so full of policy and cares of government, so entirely occupied with the most important matters of statesmanship, not to say so determined a Catholic, as the daughter of the Guises, the sister of the Cardinal.