Hi TrondN,
As for the blade, I think, It's a blade that classifies as a type XI in Oakeshott's typology of medieval swords.
Type XI characteristics: This type differs from type X by being longer, more narrow and having a narrow fuller. The point is often acute. It is believed to have been in use between c. 1100 and 1175. The sub-type XIa has av broader and shorter blade, but the fuller is still narrow.
Type XI
Best Regards,
Carlos M. Santillan