Question:
Who was the head of Romania in Jun, 1888?

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

Answer:
Theodor Rosetti