This argument is going on simultaneously at a number of articles about members of the Thai royal family. The priciple involved is that Thais (all 40 million of them) find the use of unadorned personal names for members of the royal family very offensive, and I and other users with some knowledge of Thailand (I am there now) believe that Wikipedia should take this into account. We don't do this for other royals by the way - do we have an article for Elizabeth Windsor? This article should revert to Prince Tipangkorn Rasmichoti.