HZ Zian emerged from
HZ&PC and
Zian / Vitesse. Hague Swimming and Polo Club (HZ&PC) was established in November 29, 1911. Zian / Vitesse was founded on October 4, 1922. In the past, there are several Dutch Championships achieved. HZ Zian participates in the Dutch national league. The greatest moment in the history of the club is the participation in the 1976-77
European champions cup final where Zian defeated by the
Soviet giant
CSKA Moscow with a 7-5 score. Next to this golden moment is the two years before and also lost
LEN Cup Winners' Cup final against the Hungarian
Ferencváros, at the 1974-75 season. ==Honours==