Complex sentence: His son, Ono's grandfather, was ennobled in 1915, and her father was Eisuke Ono (小野 英輔 "Ono Eisuke"), a banker and one-time classical pianist who came from a long line of samurai warrior-scholars.
Split into simpler sentences: His son, Ono's grandfather, was ennobled in 1915. Her father was Eisuke Ono (小野 英輔 "Ono Eisuke"), a banker and one-time classical pianist who came from a long line of samurai warrior-scholars.