S. R. Nathan

Sellapan Ramanathan ( ; 3 July 1924 – 22 August 2016), usually referred to as S. R. Nathan, was a Singaporean politician who was the sixth President of Singapore from 1999 to 2011, having been elected in uncontested elections in 1999 and 2005. In 2009, he surpassed Benjamin Sheares to become Singapore's longest-serving President.