Professor Dr. Dr. Gerhardt Erich Alleweldt (1927-2005) studied agriculture at the Justus Liebig University in Gießen from 1950, graduated in 1953 and was awarded a doctorate in agriculture (Dr. agr. sci.) in 1956. In 1956 he began working at the Institute for Grapevine Breeding Geilweilerhof in Siebeldingen-Pfalz (IRZ) under the direction of the then Institute Director Prof. Dr. Bernhard Husfeld (1900-1970), after whose death he took over the directorship in 1970 and held it until his retirement in 1995. In 1991 he became head of the Federal Institute for Breeding Research in Viticulture and Horticulture in Siebeldingen (Rhineland-Palatinate). Alleweldt held a number of other positions, such as chairman of the German Vine Breeders Association. At the Faculty of Agriculture of the Justus Liebig University in Giessen (Hesse), he received the authorisation to teach the subject "Plant cultivation and plant breeding with special consideration of viticulture and grapevine breeding".