Kazimierz was a fitting ruler for these halcyon days. Physically handsome, with a broad forehead and a remarkable head of hair, he was a regal figure, combining courage and determination with the tastes of a voluptuary. He launched a building programme which, along with the cathedrals of Kraków and Gniezno and churches all over the country, gave rise to sixty-five new fortified towns, the fortification of twenty-seven existing ones, and fiftythree new castles. He also rerouted the Vistula at Kraków, and constructed a canal linking the salt-mines of Wieliczka with the capital. In 1347 he codified the entire corpus of existing laws in two books: one, the Statute of Piotrków, for Wielkopolska; one, the Statute of Wiślica, for Małopolska. He reformed the fiscal system, created a central chancellery, and regulated the monetary situation with the introduction in 1388 of new coinage. In the towns, he established guilds and extended Magdeburg Law. He granted a separate law to the Armenians living in Polish cities and gave the Jews their own fiscal, legal, and even political institutions.
These measures laid the foundations of a new boom. Polish cities gained considerable numbers of merchants and skilled artisans, while the influx of Jews provided them with banking and other facilities. This stimulated industry. Newly-discovered deposits of iron, lead, copper, silver, zinc, sulphur and rock salt were exploited and mining techniques improved. The traditional exports of grain, cattle, hides, lumber and other forest produce were supplemented by manufactured goods such as finished cloth, which was carried as far west as Switzerland.
Contact with the outside world was increasing, largely thanks to the Church, whose activity, both missionary and educational, brought foreign clerics to Poland and sent Polish ones abroad, some, like the friar Benedictus Polonus, as far as the capital of the Mongol Khan Guyuk in 1245, but most to study, particularly at the universities of Bologna and Paris. King Kazimierz exerted a personal influence on the development of learning and culture, and laid the foundations of the flowering of the next century by establishing, in 1364, a university at Kraków. Coming just after the foundation of the Charles University of Prague and before those of Vienna and Heidelberg, this was the second such academy in central Europe. Unlike most English, French and German universities, which evolved from religious institutions, it was based on the Italian models of Padua and Bologna, which were secular establishments.
While he lavished care on domestic projects and encouraged
education and the arts, Kazimierz did not neglect foreign affairs: he inherited a kingdom of 106,000 square kilometres, and left one of 260,000.He warred with John of Luxembourg, King of Bohemia, over rival claims to Silesia, finally defeating him in 1345, one year before the unfortunate blind king lost his ostrich feathers to the Prince of Wales at Crécy. He then turned his attention to the east.
The Tatar invasions of the previous century had annihilated the Principality of Kiev, and the smaller Russian principalities were only allowed to survive at the cost of yearly tribute to the Tatars, who had settled in southern Russia. Two such principalities, those of Halicz and Vladimir, were adjacent to Poland’s south-eastern border. Both were dynastically connected with Poland, and after the princes of Halicz died out, in 1340, Kazimierz incorporated their lands into his own dominion.
This elongation of Poland to the south-east was inevitable and permanent. The move of the Polish capital from Gniezno to Kraków three hundred years before was now beginning to affect Polish policy significantly. The king viewed his dominions from a different vantage point, and the most pervasive influence at court was that of the magnates of Małopolska, the ‘Kraków Lords’.
There was more at stake in this eastern theatre than territorial gain. The disintegration of Kiev had left a power vacuum into which Poland was inevitably drawn, all the more so since another power was taking more than a passing interest in the area—Lithuania.
The Lithuanians were a Baltic people like the Prussians and the Latvians, between whom they were settled. Long after their kindred Latvians and Prussians had been subjugated by the Sword Brothers and the Teutonic Knights respectively, the Lithuanians continued to defy all attempts at conquest. They were ruled by a dynasty well suited to the situation, prepared to make peace and accept token Christianity from the order to gain support against the Russians of Novgorod, and from Novgorod to defeat the order. Their conduct of policy was so wily and volatile that none of their neighbours could ever rest easy. After the débâcle of Kiev, the Lithuanians annexed vast tracts of masterless land. In 1362 their ruler Grand Duke Algirdas defeated the Tatars at the Battle of the Blue Waters, and in the following year he occupied Kiev itself.