Yep. The tradition handed down for generations in the Mustchin family is that we originated in Scandinavia, before "going through the rape and pillage of England" (at least, that's how Dad puts it). I think the ancestors of the Mustchin family (aka Mustyan, Mustian, and I think Mustain) came to England during the Norman conquest. In particular, the Mustains descend from Normans from the Conqueror's time, and are actually related to the Conqueror's wife, Queen Matilda. Assuming they're the same as the Mustchins, that's my lineage.
And on Mum's side, I've traced my ancestry back to Sweden, Denmark and Norway.