▁had ▁contract ed ▁an ▁un su itable ▁second ▁marriage ▁to ▁a ▁former ▁prost itute . ▁ ▁On ▁ 5 ▁November ▁ 1 9 4 5 ▁the ▁Ter eng gan u ▁State ▁Council ▁of ▁th ir teen ▁members ▁announced ▁the ▁dismiss al ▁of ▁Sultan ▁Ali ▁and ▁the ▁appointment ▁of ▁T eng ku ▁Is mail ▁as ▁the ▁fif teenth ▁Sultan ▁of ▁Ter eng gan u . ▁T eng ku ▁Is mail ▁became ▁known ▁as ▁Sultan ▁Is mail ▁Nas ir ud din ▁Shah ▁and ▁was ▁installed ▁on ▁ 6 ▁June ▁ 1 9 4 9 ▁at ▁Ist ana ▁Maz iah , ▁K ual a ▁Ter eng gan u . ▁Sultan ▁Is mail ' s ▁descend ants ▁have ▁since ▁ruled ▁Ter eng gan u . ▁ ▁Sultan ▁Ali ▁continued ▁to ▁dispute ▁his ▁dismiss al ▁until ▁his ▁death ▁on ▁ 1 7 ▁May ▁ 1 9 9 6 . ▁ ▁E lection ▁as ▁Deput y ▁King ▁ ▁Sultan ▁Is mail ▁served ▁as ▁Deput y ▁Yang ▁di - P ert uan ▁Ag ong ▁between ▁ 2 1 ▁September ▁ 1 9 6 0 ▁to ▁ 2 0 ▁September ▁ 1 9 6 5 . ▁ ▁Yang ▁di - P ert uan ▁Ag ong ▁ ▁Sultan ▁Is mail ▁was ▁elected ▁the ▁fourth ▁Yang ▁di - P ert uan ▁Ag ong ▁of ▁Malays ia ▁and ▁served ▁in ▁that ▁office ▁from ▁ 2 1 ▁September ▁ 1 9 6 5 ▁until ▁ 2 0 ▁September ▁ 1 9 7 0 . ▁ ▁Sultan ▁Is mail ' s ▁reign ▁was ▁at ▁a ▁time