[1] By age 42 Katz had 52 restaurants in Hamburg, Germany including pizza parlors, steakhouses, delis and night clubs.

From the time the Nazis came to power, the family had faced racial discrimination and religious persecution, as well as dispossession of their property and denial of their right of existence.

In November 1938, Willi Katz was badly abused by members of the Sturmabteilung, the shoemaking business premises and the apartment were devastated.

[5] After difficult means to arrange the escape, in late September 1940, Katz family members were among the very last three groups of German Jews to successfully flee to safety.

Many of these novices later rose to national fame, and some - such as Yafa Yarkoni, Aris San, Aliza Kashi and Tzadok Savir - gained international recognition.

The decoration of the City Rock Cafe in Hamburg included original US military jets from the Vietnam war, a Helicopter cockpit on the dancefloor from where the DJ performed, a Harley-Davidson in the middle of the bar and a Cadillac hanging in the entrance.

Katz had a dazzling career, starting from a residential camp when arriving back to Germany in the 1960s to become a millionaire.

At the height of his career, Katz had a large lifestyle, bought seven racing horses in Hamburg-Farmsen, spent time with prominent figures and was a close friend to film and singing artist [13]Daliah Lavi.

Katz has been active in philanthropy such as the donation of funds to build a synagogue in a hospital in Petah Tikva, Israel.