Got taken over by the Sabbat as part of the fin de siècle “celebrations”. Was taken back by the Camarilla in what is now known as The 99' NYC take-over.
Clan Tremere played the most important role in retaking the city, and were rewarded with the Princehood. Thus ascended Prince Arafel. History, secret or otherwise, still did not recognize the important role Martha Pool had with the entire move. Maybe in the future it will.
Magenta relocated from Boston along with Primogen O'Hara's staff, to strengthen the Camarilla's hold on the domain, and Smith followed her, because hey, New York.
It is considered the fastest developing camarilla domain, to which many claim responsibility.