|Birth Place||Zurich, Switzerland, Switzerland|
|Martin Haefner age||69 YEARS OLD|
|Relatives||Eva Maria Bucher-Haefner (sister)|
He is the son of Walter Haefner. When he died in 2012, aged 101, he was the world's oldest Billionaire, and had a net worth of US$ 4.3 billion.
As of November 2015, Forbes estimated his net worth at US$2.4 billion.