|Mayor of Haarlem|
|Assumed office |
21 September 2016
|Mayor of Katwijk|
January 2001 – 21 September 2016
|Born||3 October 1960|
Wienen studied history and theology at Utrecht University. In 1986 he became a councilor for the Christian Democratic Appeal (CDA) in the town of Ridderkerk. In 1993 he became also an alderman. His job included the planning of space, housing, traffic and transportation affairs. Wienen was also vice-president of the city region Rotterdam.
In 2001, Wienen became mayor of Katwijk. In 2006, Katwijk merged with the towns of Rijnsburg and Valkenburg. He was also a member of the executive committee of the region Holland Rijnland, which includes Katwijk.
Since September 2016 Wienen has been mayor of Haarlem.
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