The wedding of Princess Beatrix of the Netherlands and Claus van Amsberg took place on Thursday, 10 March 1966, in Amsterdam, Netherlands. They were married first in a civil ceremony at the Prinsenhof, after which the marriage was religiously blessed in the Westerkerk. The bride was the eldest daughter of Queen Juliana and heir presumptive to the Dutch throne. The groom was an untitled German nobleman. The engagement of the future queen to a German caused an uproar among some Dutch people and the wedding was marred by protests.