Gert-Jan Theunisse is a cyclist from Kingdom of the Netherlands.
Gert-Jan Theunisse is 63 years old. He was born on January 14, 1963.
Gert-Jan Theunisse's birthday is on January 14; he was born in 1963.
Gert-Jan Theunisse was born in Oss, North Brabant, Netherlands on January 14, 1963.
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