Or Tedeschi, which is Italian for German (and some are now in England).
Meanwhile there is something called the <my-family-name> scroll which purports to trace lineage back* via Noah to Seth and Adam. I suspect it is a work of fiction.
I can, otoh, probably trace back to the normans (with massive help from previous family historians), but no further.
(Same should be true for JenM as she has same surname and I've always been told we're all related on account of said norman invader.)
Royal ('royal') lineage is probably the best documented.
*I think assorted kings of some description were involved, but the only time I saw (a copy of) this wonder was over 30 years ago.