King Carol I (1839-1914) Romania. He was elected Ruling Prince of the Romanian United Principalities in 1866 after the overthrow of Alexandru Ioan Cuza by a palace coup. After the defeat of the Ottoman Empire in the Russo-Turkish War, he declared Romania a sovereign nation in 1878 (the country had been under the control of the Ottoman Empire until then). He was proclaimed King of Romania in 1881.
Prince Nicholas of Romania (5 August 1903--9 June 1978), 4th child and 2nd son of Queen Marie and King Ferdinand of Romania. Married twice, Nicholas had no children. After the death of his father in 1927, Nicholas served on the regency council for his minor nephew, Michael, who'd become king in lieu of his self-exiled father, CP Carol. When Carol returned to Romania in 1930 Nicholas was betrayed and banished by him. Nicholas died in exile in Madrid in 1978.