In an introduction which aims only at giving an outline account of the mediæval navy, further details of warlike operations, which were always of the same general character, are unnecessary. There was a revival of efficiency with Henry V., not, however, marked by any single events of the brilliancy of the battle of Sluys, or "Les Espagnols sur Mer." Then came another period of collapse in the dreary reign of Henry VI. With the close of the fifteenth century the mediæval period in the history came to an end. The establishment of the Tudor dynasty has been described as marking the beginning of the new monarchy. This is perhaps a somewhat arbitrary description, but it is certainly the case that the anarchy of the Wars of the Roses had converted Englishmen, or had brought them back, to a high conception of the need of a strong royal authority as the one effectual security for the safety of the subject against disorder. The administration was centralised in the king's hand. Increase of wealth in the nation supplied him with a larger revenue, and the formation of a Royal Navy in the modern sense became at last possible. Before leaving the mediæval navy, the picture may be completed by one example of that brutal violence which has been mentioned as a feature of the sea life of the time. I have spoken of the feuds between the different towns, and of complaints of excesses committed on the coast by armed forces appointed to protect them. One concrete example is better than any amount of general statement. Here is an instance of sheer devilry taken from the unhappy years of the minority of Richard II., when the State was weak, and Englishmen had been brutalised by the savage wars of France. In 1379 Sir John Arundel was appointed to the command of a force of archers and men-at-arms, which was to go to the help of the Duke of Brittany. It was to sail from Southampton. As the weather was unfavourable, there was some delay in starting, and Arundel quartered his soldiers in a nunnery. The house, according to a common practice of the time, contained, in addition to the nuns, many married women whose husbands were absent, widows, and unmarried girls, who were sent there for safety and education. Arundel's soldiers violated these women, and pillaged the chapel. Disregarding all complaints, he not only went to sea without punishing the offenders, but allowed them to bring their booty and several of the women with them. There were also, it appears, prostitutes in the ships. The ecclesiastical authorities fell back on the only revenge then within their power. They formally cursed Arundel and his thieves with bell, book, and candle as the ships sailed away.