to procure a nine years’ truce for Saxony. Two years later the Magyars again swarmed up the Danube into Bavaria, but Henry made no effort to assist the nation which had refused to aid him in his necessity. Thus freed from the Magyars, Henry turned his arms against the Danes and the Wends. In 934 he established a strong mark against the Danes, and forced the mighty Danish king, Gorm the Old, to pay him tribute. He was even more successful against the Slavs. In 928 Brennabor (the modern Brandenburg), the chief stronghold of the Havellers, fell into his hands, and with it the broad lands between the Havel and the Spree, the nucleus of the later East Mark. [Sidenote: The defence of the frontiers and the beginnings of the Marks.] But more important than Henry’s victories were his plans for the defence of the frontiers. He planted German colonists in the lands won from the barbarian. He built a series of new towns, that were to serve as central strongholds, in the marchland districts. The Saxon monk Widukind tells us how Henry ordered that, of every nine of his soldier-farmers, one should live within the walls of the new town, and there build houses in which his eight comrades might take shelter in times of invasion, and in which a third part of all their crops was to be preserved for their support, should necessity compel them to take refuge within the walls. In return, the dwellers in the country were to till the fields and harvest the crops of their brother in the town. Moreover, Henry ordered that all markets, meetings, and feasts should be held within the walled towns, so as to make them, as far as possible, the centres of the local life. Some of the most ancient towns of eastern Saxony, including Quedlinburg, Meissen, and Merseburg, owe their origin to this policy. Henry also improved the quality of the Saxon cavalry levies, teaching his rude warriors to rely on combined evolutions rather than the prowess of the individual horseman. So anxious was he to utilise all the available forces against the enemy, that he settled a legion of able-bodied robbers at Merseburg, giving them pardon and means of subsistence, on the condition of their waging war against the Wends.