On the northern bank of the Thames, standing in a somewhat elevated position a short distance east of the ancient city-walls, is the collection of buildings known as the Tower. The enclosure covers about twelve acres, encircled by a moat now drained, and a battlemented wall from which towers rise at intervals. Within is another line of walls with towers, called the Inner Ballium, having various buildings interspersed. In the enclosed space, rising high above all its surroundings, is the great square White Tower, which was the keep of the old fortress. Tradition assigns a very early date to this stronghold, but the written records do not go back earlier than William the Conqueror, who built the White Tower about 1078. It was enlarged and strengthened by subsequent kings, and Stephen kept his court there in the twelfth century. The moat was made about 1190. Edward II.'s daughter was born there, and was known as Joan of the Tower. Edward III. imprisoned Kings David of Scotland and John of France there. Richard II. in Wat Tyler's rebellion took refuge in the Tower with his court and nobles, numbering six hundred persons, and in 1399 was imprisoned there and deposed. Edward IV. kept a splendid court in the Tower, and Henry VI., after being twice a prisoner there, died in the Tower in 1471. There also was the Duke of Clarence drowned in a butt of Malmsey wine, and the two youthful princes, Edward V. and his brother, were murdered at the instance of Richard III. Henry VII. made the Tower often his residence. Henry VIII. received there in state all his wives before their marriages, and two of them, Anne Boleyn and Catharine Howard, were beheaded there. Here the Protector Somerset, and afterwards Lady Jane Grey, were beheaded. The princess Elizabeth was imprisoned in the Tower, and James I. was the last English sovereign who lived there. The palace, having become ruinous, was ultimately taken down. The Tower during the eight hundred years it has existed has contained a legion of famous prisoners, and within its precincts Chaucer, who held an office there in Richard II.'s reign, composed his poem _The Testament of Love_, and Sir Walter Raleigh wrote his _History of the World_. [Illustration]