Date of Birth: 
Place of Birth: Oslo, Eastern Norway, Norway
About Birger Knudtzon
- Jens Birger Knudtzon (born 19 February 1936) is a retired Norwegian rower. He was born in Oslo.
- Representing the club Bærum RK, he finished ninth in the coxed four event at the 1964 Summer Olympics.He resides in Oslo, and has a fortune of about US$6.2 million.
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