George was made the "ispán" (or head) of Borsod County in 1615. A year later, he was appointed the captain of the royal castle at Ónod. He married a wealthy heiress, Zsuzsanna Lorántffy. He would emphasize in his last will that his wife was the most beautiful and pleasant woman whom he met in his life. They settled in Szerencs, but later moved to her inherited estate, Sárospatak. They were enthusiastic adherents of the Reformed Church. He supported Gabriel Bethlen, the Calvinist Prince of Transylvania, against the Catholic pretender, György Drugeth. When Drugeth was planning to break into Transylvania, George visited Bethlen in July 1616.