Complex sentence: His father, Swiss-born Fernand Auberjonois (1910--2004), was a Cold War-era foreign correspondent and Pulitzer Prize-nominated writer, and his grandfather, by Augusta Grenier, also named René Victor Auberjonois, was a French Swiss post-Impressionist painter.
Split into simpler sentences: His father, Swiss-born Fernand Auberjonois (1910--2004), was a Cold War-era foreign correspondent and Pulitzer Prize-nominated writer. His grandfather, also named René Auberjonois, was a French Swiss post-Impressionist painter.