Hi, me and my father have been doing some more reserach into our family name for the past couple of days and have ran into a post you made about our family name 'Jantzen' on a website. We are, to our knowledge, the only Jantzen family living in england. We have traced it back to 1801 (Hanover, Germany) however our family has always believed it to be Norwegian. if you have any information on this please get in touch.