With the reign of Henry VI. begins the series of royal tragedies connected with the Tower. As king and prisoner alternately, the unfortunate monarch spent here most of his life, until after the battles of Barnet and Tewkesbury in 1471, which finally crushed his cause, he entered the Tower once more, where, a few weeks later, he was found dead, not without grave suspicion of foul play on the part of the Duke of Gloucester, the brother of his successor, Edward IV. Gloucester's brotherly regard, whether real or assumed, ceased with the King's death, and he found no words too black in which to paint the character of the late monarch, and so pave the way for his own accession to the throne. No obstacle was allowed to interfere with his ambition, and the murder of the two young princes is the saddest and most closely associated of all the historical events which give the walls of the old fortress an almost sacred character. From this cruel crime the Bloody Tower takes its name. In the records of its later years the Tower kept up its tradition of violence and bloodshed; the little church of St. Peter ad Vincula close by bears sad witness to the dangers besetting the path which those must tread who seek for high estate. CHAPTER VI. THE PASSING OF MEDIÆVAL LONDON. _Changes in Human Thought in the Fifteenth and Sixteenth Centuries--Drawbacks to Civilisation, Worldliness and Neglect of Religion--Reflection of this in London Life--St. Paul's in Neglect--The Struggle for Better Things--Hope for the Future--The Great Fire._ A few words seem called for before we leave the middle age of the great City. The world may be said to have entered on a new life in the wonderful movements of the fifteenth and sixteenth centuries. The downfall of the ancient city of Constantinople, which had driven the scholars of the East westwards, especially into Italy, led to the great revival of learning in Western Europe. The splendid works of Architecture, and of Painting and Poetry, all trace their origin in part to this source. The discovery of the Mariner's Compass had led on to that of a New World in the West, and of the passage round Africa to the East. The new learning had produced the revolt against traditional authority in theology. All this was wonderfully influencing English, and therefore London, life. And so we have exploits of rich citizens over the seas. We have the establishment of places of education, in London pre-eminently Christ's Hospital, and the good works of Sir Thomas Gresham.