medieval/Renaissance clothing

I've seen the occasional ad in SL for a "medieval" or "Renaissance" gown. The items have often been beautifully done, but it's not clear to me that they're really based on clothing of that time.

I want to wear a houppelande in SL, or a cotehardie. Is that possible?

UPDATE: Mordecai Scaggs, whose blog you really should read, has graciously sent me a landmark for Avalance, Lightfoot, and Sputnik as a possible source. I went there last night when I woke up at a ridiculous hour. I looked for the outfit he specified, i really did... but spent so long admiring the other lovely clothing there that I had to reluctantly leave before I found it. I will return.

The "Sputnik" part of the name perhaps refers to the presence of some items of popular culture and SF. I couldn't help but notice the aliens from that classic Dr. Who episode, "The Loch Ness Monster," which has my very favorite Dr. Who line of all time, spoken by one of said aliens about the Doctor:

He was a formidable opponent, but he underestimated the power of organic crystallography.

UPDATE: Oops... evidently it's "Terror of the Zygons." Sorry.