Istana Tyersall was a palace that used to be in the former Tyersall Park bound by Holland Road and Tyersall Road near the Singapore Botanic Gardens in Singapore. The land it was formerly built on is c

Ibrahim I bin Abdul Rahman I of Johor was the Temenggong of Johor from 1841 to 1862. After he and Sultan Ali Iskandar Shah signed the 1855 treaty with the British Government in Singapore, he ruled Joh