Seems CJ hasn't put this up here yet.
The annual (yay!) Grand Tribunal UK is being held this year as well as the previous 8 years (since 2007). This miniature con is dedicated to Ars Magica and other Atlas Games games, but mostly Ars Magica. It's a small and friendly and tremendously fun event. It seems we are a bit slow on the enrolment this year, so pleas, read the wiki, decide that THIS is what you should be doing mid August, and buy a ticket.
The webpage/wiki is here: grandtribunal.org/wiki/Main_Page
Håkon, Ultima Thule representative.