Todor Hristov Zhivkov (7 September 1911 – 5 August 1998) was a Bulgarian communist statesman who served as the de facto leader of the People's Republic of Bulgaria (PRB) from 1954 until 1989 as General Secretary of the Bulgarian Communist Party. He was the second longest-serving leader in the Eastern Bloc after Yumjaagiin Tsedenbal, the longest-serving leader within the Warsaw Pact and the longest-serving non-royal ruler in Bulgarian history.