Did not he conquer Moravia and Bohemia and win the seat of the duchy in Prague (…), was it not he who time and again defeated the Hungarians in battle and made himself master of all their lands as far as the Danube? The indomitable Saxons were not a match for his valor: hence in the middle of their country an iron boundary sign in the River Saale marked Poland’s boundaries. (…) When Selencia, Pomorania, and Prussia persisted in their perfidy he crushed them, and when they converted he strengthened them in their faith, indeed he established through the pope many churches and bishops there. Galus Anonymous, I, 6, trans. P. W. Knoll F Schaer (CEUP, 2003)
Stanisław Rosik (Fri,) studied this question.
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