I googled, I read several pages of irrelevancy, I gave up.
I have a Viking style broadsword (homemade, so the cautions against damaging valuable antiques are not needed) and I want to sharpen it. I’m pretty good with a stone and steel, but usually on blades that are about two feet shorter than this. Any advice would be appreciated.
I’ve never done that before, but I’d use a bastard file on it. I’d try propping it between my knees or clamping it to a workbench and working it with a file.
Good luck and be careful not to cut yourself.