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Wiki information Imreffy:
János Imreffy de Szerdahely was a Hungarian soldier and noble in the Principality of Transylvania, who served as Chancellor of Transylvania from Spring 1610 to 9 July 1611, his death. He was a member of the Imreffy family of old origin.
Mihály Imreffy de Szerdahely was a Hungarian soldier and noble from the Imreffy family, who served as master of the horse, which was one of the high dignitaries in the Kingdom of Hungary.