Romualdo Rubi (1961-2018) was a Philippine Army enlisted trooper and a recipient the Philippines' highest military award for courage, the Medal of Valor. Rubi was a First Lieutenant in 2015.
Romualdo Marenco (March 1, 1841 – October 9, 1907) was an Italian composer primarily noted for ballet music. Marenco started his musical career as a violinist in the Doria Theater in Genoa. His first composition was the ballet Garibaldi's Landing in Marsala. He was appointed the orchestral conductor for La Scala in Milan and also directed the ballet company there for seven years. His best-known ballets were written in collaboration with choreographer Luigi Manzotti during that period.
Romualdo Polverino (circa 1700-1731) was an Italian historical painter. He trained, alongside Scipione Cappella, under Francesco Solimena. Like Cappella, he was known mainly for his ability to make copies of the latter master's paintings. These copies were in high demand and often sold as originals. He died young of an illness that had stunted his stature.