The Swiss viticultural technician Heinrich Schellenberg (1868-1967) was a graduate of the Strickhof agricultural college in Zurich, the Klosterneuburger Weinbauschule (Austria) and the Istituto Agrario di San Michele all'Adige(Trentino). In 1890, he was the first employee of Dr Hermann Müller-Thurgau (1850-1927) at the experimental station and school for fruit, wine and horticulture in Wädenswil (Canton Zurich). There he was also involved in the crossing of the Müller-Thurgau grape variety developed by Müller-Thurgau and later named after him. He rendered outstanding services in the performance testing and introduction of this variety to winegrowing operations.
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