New: Joseph Tsai and Clara Wu Tsai, Hong Kong
Why them? On top of sharing a passion for tech—Joseph is co-founder of the Alibaba Group and Clara is an advisor to Taobao—this tycoon couple are both keen supporters of the arts. They're known to be avid collectors but are currently keeping the details of their collection private, though it's said to be focused on contemporary art. Last year, the couple was named in American magazine ArtNews’ list of top 200 collectors in the world for the first time.