Complex sentence: He was a great-grandson of the scholar Eliezer Liepman Philip Prins (1835-1915), and his grandfather, Julius, was the founding president of the Adath Yisroel Synagogue in London.
Split into simpler sentences: He was a great-grandson of the scholar Eliezer Liepman Philip Prins (1835-1915). His grandfather, Julius, was the founding president of the Adath Yisroel Synagogue in London.