Charismatic former royal Rajmata Gayatri Devi, who had an eventful stint in politics and was jailed during the Emergency, died at a hospital in Jaipur on Wednesday, following prolonged illness. She was 90. She was admitted to Satokben Durlabh Memorial Hospital early this month and was discharged a few days ago. But she was readmitted on Tuesday as she was suffering from a chest infestion.