sentences:  In 1523 Balthasar Gleinzer, who had owned Micheldorf since 1515, obtained permission to rename his village "Gleinzstätten" (""place of the clay""), from which the current name evolved.The year 1556 marked the conversion of the small medieval fortification at the center of the village to one of the most significant castles in the style of the Italian Renaissance that have been preserved in Austria.It grew toward its current four-wing, three-storey design from 1622 onward when the Zeller family assumed ownership of Gleinstätten.