Jacob Levy Moreno was born in Bucharest in the Kingdom of Romania. His father was Moreno Nissim Levy, a Sephardi Jewish merchant born in 1856 in Plevna in the Ottoman Empire (today Pleven, Bulgaria). Jacob's grandfather Buchis had moved to Plevna from Constantinople, where his ancestors had settled after they left Spain in 1492. It is thought that the Morenos left Plevna for Bucharest during the Russo-Turkish War of 1877–1878, following the Plevna rabbi, Haim Bejarano in search of a more hospitable environment. Jacob Moreno's mother, Paulina Iancu or Wolf, was also a Sephardi Jew, born in 1873, and originated from Călăraşi, Romania.