The untold story of Prince Kálmán: from a Russian principality to the Mongol invasion
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During the reign of the Árpád dynasty, it was not unusual for fathers and sons, brothers, or uncles and nephews to fight bitterly over royal power. Yet one notable exception was Prince Kálmán, the second son of King Andrew II, who led a far more exemplary life. He fought side by side with his brother as a crowned ruler at the Battle of Muhi, only to die shortly after the devastating defeat.
King at just six years old
King Andrew II’s reign is today often regarded as controversial. He is chiefly remembered for his generous land grants, which weakened royal authority and prompted the issue of the Golden Bull. Yet recent scholarship casts Andrew in a more nuanced light, noting that he was among the few Christian monarchs of his age capable of leading a crusade to the Holy Land. Although his campaign achieved little militarily, he returned having secured advantageous marriages and retained enough authority to prevent the kingdom from collapse during his absence. His reign also witnessed the expansion of the Kingdom of Hungary, particularly in the northeast.
As a result of these efforts, Andrew’s second son, Kálmán, was elevated to the princely throne of Halych (roughly present-day Galicia in Poland and Ukraine) at the age of just six. The coronation, arranged with papal support, formed part of a wider attempt to spread Western Christianity eastwards. Beforehand, Andrew had struck an alliance with Leszek the White, ruler of Lesser Poland, marrying his younger daughter, Salomea, to the young Kálmán, thereby strengthening their joint claim over the newly won territory.
Yet Hungarian troops found it difficult to hold even Halych Castle against rival Russian claimants backed by the Cumans. By 1221, at just thirteen, Kálmán and his young wife were driven from Halych and briefly taken prisoner. Though he proudly bore his royal title until his death, he never returned to rule there.
Andrew tried to pit his sons against each other
The Árpád dynasty was often marked by younger sons and nephews eager to seize power from their kin. King Andrew II himself had once rebelled against his elder brother, King Imre, and later faced opposition from his own son, Béla IV. By the early 1220s, tensions between Andrew and Béla had become evident. After Kálmán’s expulsion from Halych, Andrew appointed him Duke of Slavonia and dispatched Béla to rule Transylvania as voivode.
But Kálmán was not the kind to conspire against his brother. On the contrary, he actively supported and implemented Béla’s policies. Their close relationship is evident in several of Béla’s surviving charters, which record that he consulted and collaborated with Kálmán.
