Alexandru Ioan Cuza (, or
Alexandru Ioan I, also anglicised as
Alexander John Cuza; 20 March 1820 – 15 May 1873) was
Prince of Moldavia,
Prince of Wallachia, and later
Domnitor (ruler) of the
Romanian Principalities. He was a prominent figure of the Revolution of 1848 in
Moldavia. He initiated a series of reforms that contributed to the modernization of Romanian society and of state structures.