masterful personality to the government.
The growth of Lithuania was a major phenomenon of the fourteenth
century Gedymin and his son Olgierd brought under their pagan rule
nearly all western Russia: Polotsk, Pinsk, Smolensk, Chernigov,
Volhynia, Kiev, Podolia, and the Ukraine; some of these were glad to
find, under the Great Princes, a refuge from the Tatar Golden Horde
that held eastern Russia in fief. When Jagello succeeded Olgierd
(1377) the Lithuanian Empire, governed from Wilno, reached from the
Baltic to the Black Sea, and almost to Moscow itself. This was the
gift that Jagello brought to Jadwiga, or Poland was the dowry that she
brought to him. She was only sixteen at their marriage; she had been
reared as a Roman Catholic in the finest culture of the Latin
Renaissance; he was thirty-six, illiterate and "heathen"; but he
accepted baptism, took the Christian name of Ladislas II, and promised
to convert all Lithuania.
It was a timely union, for the eastward advance of the Teutonic
Knights was endangering both the wedded states. The "Order of the
Cross," originally dedicated to Christianizing the Slavs, had become a
band of martial conquerors, taking by the sword whatever terrain
they could snatch from pagan or Christian, and establishing a harsh
serfdom over lands once tilled by a free peasantry. In 1410 the
Grand Master, from his capital at Marienburg, ruled Esthonia, Livonia,
Courland, Prussia, and eastern Pomerania, shutting Poland off from the
sea. In a ferocious "Northern War" the Grand Master's army and that of
Jagello- each, we are told, 100,000 strong- met in battle near
Grunewald or Tannenberg (1410). The Knights were defeated and fled,
leaving behind them 14,000 prisoners and 18,000 slain- among these the
Grand Master himself. From that day the Order of the Cross rapidly
declined, until in the Peace of Thorn (1466) it ceded Pomerania and
western Prussia to Poland, with the free port of Danzig as a door to
the sea.
During the reign of Casimir IV (1447-92) Poland attained the apex of
her spread, her power, and her art. Though himself quite illiterate,
Casimir ended the knightly scorn of letters by giving his sons a
thorough education. Queen Jadwiga, dying, left her jewels to finance
the reopening of Cracow University- which, in the next century,
would teach Copernicus. Literature, as well as science and philosophy,