Is there any documented or implied use of mounted use of polearms (not including lances and spears) in Europe? I know the Chinese used glaives on horseback, but I can't find any references to European horsemen using such weapons.

I'm unable to get my hands on copies or images of most of the treatises, so that's pretty much out of the question. I'd thought to check Le Jeu de la Hache, but my French is practically nonexistent and I can't get my hands on images of it anyway.

While searching, I did come across references to a 'Warbrand' polearm/sword thing in the Maciejowski Bible. The problem is that calling it a polearm might be really stretching the term, since it looks a lot like a scaled-up kitchen knife.