Killiecrankie 1689

 Today's anniversary. Wiki

Polish cavalry

 Roelant Savery, Polish Cavalry Marching in the Woods, 1614, Here

Michal Paradowski has said they might be Hungarians. Or Croats.  See here

Grand Duke Peter Fedorovich, in the uniform of the cuirassier regiment of the Heir, 1743 by G. Grot

 

Denain 1712

 Today's anniversary. Here. A significant French victory. 

Kay 1759

 Today's anniversary. Here. 265 years ago. Thanks to Alt Kreyzten for the pic.

also referred to as the Battle of Sulechów, Battle of Züllichau, or Battle of Paltzig

Bagpipes in the 17th century

 On the Monmouth Rebellion Facebook page there was a discussion on whether the Royal Scots had pipers or not. It seemed from what Stephen Carter said the Colonel's company had them. So the next question is what were bagpipes of 1685 like? Found this article which is interesting. Anybody know more on the subject?

Cavalry skirmish

 I don't know the artist.