Gerard Sagredo
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St. Gerard Sagredo (also known as St. Gellért or St. Gerhard, c. 980 — 1046), a bishop of Italian origin who operated in Hungary, educated Saint Emeric of Hungary (the son of Saint Stephen of Hungary). He played a major role in converting Hungary to Christianity. He was the bishop of Budapest.
Gellért's martyrdom took place on a hill in Budapest which takes its name from him.
Canonized in 1083 along with St. Stephen and St. Emeric, Gellért is currently one of the patron saints of Hungary.