Alexander Morandell 600 × 800

Alexander Morandell
Board - President

Preystrasse 9
39052 Kaltern (BZ)

Telephone: +39 335 52 30 288

As a dynamically thinking person, I am in love with grapes and have been able to move a lot with and around PIWI grapes. I see my new role at PIWI International as internationalization and to establish PIWI as a brand together with local associations and winegrowers.

Jiri Sedlo

Jiri Sedlo

Board of Directors - Vice President

Záhumni 1264
69102 Velke Bilovice
Czech Republic

Telephone: 0042 0 606 71 71 90

I worked as a specialist teacher and in the breeding of PIWI grape varieties, also in the association for ecological viticulture ALTERVIN, for twenty years I was active in the Czech Viticulture Association, AREV and COPA-COGECA. Now I am a freelance consultant and editor for the specialist journal Vinarsky obzor. At PIWI International I want to promote the internationalization of the association.

Christian Waltl 600 × 800

Christian Waltl


Dr. Wutte Strasse 14
9020 Klagenfurt

Telephone: 0043 650 5545 165

I have been involved in the winery for more than 10 years and manage a 2-hectare PIWI organic young wine garden in Klagenfurt, southern Austria, and as a cultural manager I organize various festivals that are primarily concerned with wine or beer and art education.

Josef Engelhart (2)

Josef Engelhart

Executive Board 

On the path 15
97209 Veitshochheim

Telephone: 0160 7439432

I have been working with PIWI grape varieties for 40 years. Professionally, I am employed as a viticulture technician and ampelograph at the Bavarian State Institute for Viticulture and Horticulture. I advise interested winemakers about PIWI wine grape varieties and PIWI table grape varieties. I have been an active member of PIWI-International for 19 years and enjoy our very good international cooperation for an environmentally friendly future of viticulture.

Andreas Dilger

Andreas Dilger

Executive Board

Urachstrasse 3
79102 Freiburg i.Br.

Telephone 0761-1377111
m 0176-21048793

Ecological winery in Freiburg with 100% PIWIs, lateral entrant and self-taught, sustainable viticulture with the concept of organic wine and as a solidarity vineyard


Beatrice Steinemann

Executive Board

Ackerstrasse 113
5070 Frick

Phone: +41 62 865 72 03

Frantisek Madl 600 × 800

František Mádl

Na Aleji 148
69102 Velké Bílovice
Czech Republic

Telephone: 00420 602 780 364

I have been working with PIWI vines all my life since 1985. I was a member of a team that imported prospective new varieties from European research institutes and also dealt with the new varieties of PIWI grape varieties. Since 1996 I have been cultivating 2.3 hectares of PIWI varieties organically and offer NATURVIN wine. My task and also the goal is to establish "PIWI - Czech Republic" in 2021!

Wolfgang Renner (2)

Wolfgang Renner

Ragnitzstrasse 193
8047 Graz

Telephone: 0043 316 87 76 614

I have been chairman of PIWI Austria since 2016 and have worked in wine research for over 25 years, with a focus on PIWI.
PIWI International is to be the umbrella organization and central hub for the international PIWI network.