In co-operation with his father Hans-Hermann Seyffardt he signed responsible for the Diefenhardt Wine Estate in 1981, followed by sole ownership in 1998. His previous activities included the diploma studies of viticulture and viniculture in Geisenheim. During that period he worked for one year as a cellar master for Distillers Corporation in Stellenbosch, South Africa and for 6 months as a consultant for Bodega Etchart in Cafayate/Argentina.
Daughter of Peter Seyffardt. Julia studied Viticulture & Enology at the University in Geisenheim and completed her studies in 2014. To get more experience she did an internship in Stellenbosch/South Afrika and Burgundy/France.
Presently she works in the winery.