is one of the RAREST items in Tibia. There is probably only one white dress in the game.
It was donated to the wedding of two GMs a long time ago and since then it has wandered around the players a few times until it ended up on Antica, at Sheepyy's house. Interesing is fact, that he exchange golden helmet for these dress - there are many more of them in the game so it was really good deal. For years, we have been able to admire her in his house along with equally rare items - blessed shield, crown and magic long sword.
Unfortunately, his items were sold in a difficult situation for him. The white dress, however, remained in almost the same hands. It's owned by Miujau, Sheepyy's tibian (or real - I don't know) wife. since he decided to give this item to his wife, it probably didn't get a good price and has sentimental value. Until recently, we could admire it in her house, but now it is hidden from the deposit. However, we could see her in December at the Red Rose Anniversary exhibition - the oldest guild in tibia.
Btw... If it was a wedding gift, did the couple only get one item? or maybe there were two items in the game? It's really interesing question but this is the only one known dress.
1. Miujau house, 2019
2. Red Rose Anniversary exhibition, 2020
3. Sheepyy house, archive
sources: TibiaMysteries, TibiaWiki, private archive & knowledge