sentences:  A chemical engineer by training, she was heading an oil and gas consultancy firm based in Kuala Lumpur before her marriage to the Sultan.She and the Sultan, who had been the country’s most eligible royal bachelor for decades, have known each other since the mid-1990s.She was officially crowned as the Raja Permaisuri of Perak during Sultan Nazrin's enthronement ceremony as the 35th Sultan of Perak on 6 May 2015.