Genzyme's owner since 2011 comes from which city?
Genzyme:  Since its acquisition in 2011, Genzyme has been a fully owned subsidiary of Sanofi. Sanofi: Sanofi S.A. is a French multinational pharmaceutical company headquartered in Gentilly, France, as of 2013 the world's fifth-largest by prescription sales.
Gentilly, France