Question:
Who was the head of Romania in Jun, 1884?

Context:
 Constantin Dăscălescu is the head of the government of Romania from May, 1982 to Dec, 1989. 
 Dimitrie Brătianu is the head of the government of Romania from Apr, 1881 to Jun, 1881. 
 Nicolae Ciucă is the head of the government of Romania from Nov, 2021 to Dec, 2022. 
 Chivu Stoica is the head of the government of Romania from Oct, 1955 to Mar, 1961. 
 Nicolae Văcăroiu is the head of the government of Romania from Nov, 1992 to Dec, 1996. 
 Ion Ghica is the head of the government of Romania from Dec, 1870 to Mar, 1871. 
 Dimitrie Ghica is the head of the government of Romania from Nov, 1868 to Jan, 1870. 
 Victor Ponta is the head of the government of Romania from May, 2012 to Nov, 2015. 
 Armand Călinescu is the head of the government of Romania from Mar, 1939 to Sep, 1939. 
 Ilie Verdeț is the head of the government of Romania from Mar, 1979 to May, 1982. 
 Ion G. Duca is the head of the government of Romania from Nov, 1933 to Dec, 1933. 
 Victor Ciorbea is the head of the government of Romania from Dec, 1996 to Apr, 1998. 
 Ion Gheorghe Maurer is the head of the government of Romania from Mar, 1961 to Feb, 1974. 
 Sorin Grindeanu is the head of the government of Romania from Jan, 2017 to Jun, 2017. 
 Ion Emanuel Florescu is the head of the government of Romania from Mar, 1891 to Dec, 1891. 
 Barbu Catargiu is the head of the government of Romania from Feb, 1862 to Jun, 1862. 
 Petru Groza is the head of the government of Romania from Mar, 1945 to Jun, 1952. 
 Miron Cristea is the head of the government of Romania from Feb, 1938 to Mar, 1939. 
 Radu Vasile is the head of the government of Romania from Apr, 1998 to Dec, 1999. 
 Nicolae Rădescu is the head of the government of Romania from Dec, 1944 to Feb, 1945. 
 Ștefan Golescu is the head of the government of Romania from Nov, 1867 to May, 1868. 
 Gheorghe Tătărescu is the head of the government of Romania from Jan, 1934 to Dec, 1937. 
 Ion C. Brătianu is the head of the government of Romania from Jun, 1881 to Mar, 1888. 
 Manolache Costache Epureanu is the head of the government of Romania from May, 1876 to Aug, 1876. 
 Gheorghe Argeșanu is the head of the government of Romania from Sep, 1939 to Sep, 1939. 
 Ion Gigurtu is the head of the government of Romania from Jul, 1940 to Sep, 1940. 
 Mugur Isărescu is the head of the government of Romania from Dec, 1999 to Dec, 2000. 
 Octavian Goga is the head of the government of Romania from Dec, 1937 to Feb, 1938. 
 Petre Roman is the head of the government of Romania from Dec, 1989 to Oct, 1991. 
 Gheorghe Gheorghiu-Dej is the head of the government of Romania from Jun, 1952 to Oct, 1955. 
 Ludovic Orban is the head of the government of Romania from Nov, 2019 to Dec, 2020. 
 Manea Mănescu is the head of the government of Romania from Feb, 1974 to Mar, 1979. 
 Emil Boc is the head of the government of Romania from Dec, 2008 to Feb, 2012. 
 Viorica Dăncilă is the head of the government of Romania from Jan, 2018 to Nov, 2019. 
 Alexandru G. Golescu is the head of the government of Romania from Feb, 1870 to Apr, 1870. 
 Petre S. Aurelian is the head of the government of Romania from Dec, 1896 to Apr, 1897. 
 Theodor Rosetti is the head of the government of Romania from Mar, 1888 to Mar, 1889. 
 Dacian Cioloș is the head of the government of Romania from Nov, 2015 to Jan, 2017. 
 Nicolae Crețulescu is the head of the government of Romania from Jun, 1865 to Feb, 1866. 
 Adrian Năstase is the head of the government of Romania from Dec, 2000 to Dec, 2004. 
 Constantin Argetoianu is the head of the government of Romania from Sep, 1939 to Nov, 1939. 
 Nicolae Iorga is the head of the government of Romania from Apr, 1931 to Jun, 1932. 
 Florin Cîțu is the head of the government of Romania from Dec, 2020 to Nov, 2021. 
 Nicolae Golescu is the head of the government of Romania from May, 1868 to Nov, 1868. 
 Theodor Stolojan is the head of the government of Romania from Oct, 1991 to Nov, 1992. 
 Mihai Tudose is the head of the government of Romania from Jun, 2017 to Jan, 2018. 
 Constantin Sănătescu is the head of the government of Romania from Aug, 1944 to Dec, 1944. 
 Mihai Răzvan Ungureanu is the head of the government of Romania from Feb, 2012 to May, 2012. 
 Lascăr Catargi is the head of the government of Romania from Dec, 1891 to Oct, 1895. 
 Constantin Bosianu is the head of the government of Romania from Jan, 1865 to Jun, 1865. 
 Take Ionescu is the head of the government of Romania from Dec, 1921 to Jan, 1922. 
 Călin Popescu-Tăriceanu is the head of the government of Romania from Dec, 2004 to Dec, 2008. 
 Mihail Kogălniceanu is the head of the government of Romania from Oct, 1863 to Jan, 1865. 
 Dimitrie Sturdza is the head of the government of Romania from Apr, 1897 to Apr, 1899.

Answer:
Ion C. Brătianu