He was the eldest son of Bolesław I the Brave, King of Poland, but was deprived of the succession by his father, who around 1001 sent him to Italy, in order to became a monk at one of Saint Romuald's hermitages in Ravenna.
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Bezprym was then destined to a Church career, a fact who is demonstrated in the Vita of St. Saint Romuald, a hermit from Ravenna.