Martikov family own this Winery. It was attacked by fanatical Druids, allied/empowered by Strahd.
The reason why the Vinyard can make such good wine is because they had special seeds: Magic Gem Seed
They used to make 3 types of wine. #1 The Rich Champaign du le Stomp #2 Red Dragon Crush #3 Purple Grape Mash #3
Someone stole one of the gems years ago, so they can no longer produce #1, their best wine. Since then, people have stole the other 2 gems, the winery cannot even make any decent wine in Barovia anymore. For the good of all Barovia, Davian Martikov asked us to retrieve the Magic Gem Seed. Related Quest: Find the Winery’s Gem Seeds