Another superb set of entries Gall. By far the best and most eclectic historical and research thread on this site (and on many other sites on the internet as well).
A more modern bit of video- a recent Greco-Roman wrestling match, featuring the rarely performed "flying squirrel"...don't know if it has historical precedent, but it IS hysterical!
That is awesome. I think you might see a few similar moves in that last Polish ringen / fencing tournament video I posted, but nothing quite that spectacular!
Steampunk fans who like the Middle Ages never fear, found another cool Medieval Robot. An automata called the "Complementaurious", which was clad in a suit of armor and used to greet people with a complex series of movements in the entrance to the Merchants Guild Hall in Bremen, on of the most interesting of the Hanseatic cities.
It's not hard to imagine how such a device could be made to cause trouble for Adventurers, particularly low level adventurers or in a low-magic campaign. Especially since we know of at least one Arab inventor from as early as the 12th Century who made programmable automata / robots (to play music). Detailed plans for which survived in a book he wrote.