Ion Ionel Constantin Brătianu (Romanian pronunciation: [iˈon brətiˈanu], also known as Ionel Brătianu; 20 August 1864 – 24 November 1927) was a Romanian politician, leader of the National Liberal Party (PNL), Prime Minister of Romania for five terms, and Foreign Minister on several occasions; he was the eldest son of statesman and PNL leader Ion Brătianu, the brother of Vintilă and Dinu Brătianu, and the father of Gheorghe I. Brătianu. Ion I. C. Brătianu's political activities after World War I, including part of his third and fourth term, saw the unification of the Old Romanian Kingdom with Transylvania, Bukovina and Bessarabia (see: Greater Romania). In 1923, he was elected an honorary member of the Romanian Academy.