His grandfather was the German jeweller Victor Mayer who founded the Victor Mayer jewelry company in Pforzheim in 1890.
Another famed family member is his brother the computer pioneer Manfred Mohr.
Mohr-Mayers childhood was overshadowed by the bombing of Pforzheim in 1945 during World War II.
The dramatic event took the lives of many of his childhood friends and destroyed 83% of the inner city.
The building he grew up in which also housed the Victor Mayer Co.
remained miraculously untouched by the disaster.
In 1960 he received a PhD in business administration at the University of Munich, then he worked with jewellers Asprey in London and Altenloh, Brussels until 1964.
There he refined his taste and skills in jewelry making.
In 1965 he and Hubert Mayer became owners of the Victor Mayer Jewelry manufacturing company in Pforzheim.
Mohr-Mayer turned the Victor Mayer company over to his son Marcus O.
Mohr in 2001 and retired from his position in 2003.