Great find as always, Alexander.
Here is the link to a better overall view:
http://www.e-codices.unifr.ch/en/zbz...0033b/1r/small
I must get re-adjusted to South German/Swiss dialect in the early 1400's, then I might be able to give you some clue. The main problem with all manuscripts is to get used to the individual writer's 'hand' ...
Best,
Michael