Not an official event, but lots of SCA folk in garb.
"This was at the Episcopal Church at the top of the Berkeley hills; I don't remember exactly where except that it was very close to Tilden Park, and had a walled garden in which the marriage took place. Invitees were requested to wear medieval clothes. The Priest who conducted the wedding was slightly bemused that, for once, his ecclesiastical garb wasn't substantially more archaic than anybody else's garb -- but he was delighted." -- Siegfried von Hoflichskeit
See photographs from this event
Disclaimer: This history may have errors in it, as much of the detail is “remembered” history, or as one of the cover pages of the original type-written manuscript states “The material within is derived from the information printed in The Crown Prints and in The Page, and from the memories of the participants.” The original document was typed on onion-skin paper, with hand-written notes (often in the margins). All attempts have been made to reconcile the notes with the original document.
The West Kingdom History Website was created by and is maintained by Hirsch von Henford (mka Ken Mayer).