 Queen Zein further filled a constitutional vacuum after the assassination of the late King Abdullah I in 1951, while the newly proclaimed King Talal was being treated outside the Kingdom.The Queen again performed this role during the period between August 1952, when her son, King Hussein, was proclaimed monarch, and May 1953, when he assumed constitutional duties at the age of eighteen.Following the arrival of Palestinian refugees into Jordan after the 1948 Arab-Israeli War, she led national relief efforts to help the tens of thousands of refugees.