Thirza Van Giessen [Edit] By Sticky Facts Editorial StaffThirza Van Giessen biography, ethnicity, religion, interesting facts, favorites, family, updates, childhood facts, information and more:Thirza Van Giessen date of birth:April 7, 1986How old is Thirza Van Giessen?40What is Thirza Van Giessen nationality?Dutch Tags: birth day 7birth month aprilbirth year 1986dutch Suggested Posts Michael Jackson Facts Katy Perry Facts Vin Diesel Facts Charlize Theron Facts Harry Styles Facts John Lennon Facts Michael Schumacher Facts Bill Gates Facts