In 1361, the Battle of Wisby took place in Gottland, Sweden. For the 650th anniversary, April 29, 2011, re-enactors brought the battle to life. (photos)
The weekend-long event included the battles, workshops, camps and tournaments. This was a practice run for the actual battle; see comment below.

The event on April 29 was
The event on April 29 was practice.
The real event will be August 5 - 15, with battles August 10 and August 13.
This is during the annual Wisby Medieval week.
Promotion video
Thanks for the correction
The video is awesome! I've added it to the article links.
Thanks for bringing the error to our attention.