Pío Baroja y Nessi was a Spanish writer, one of the key novelists of the Generation of '98. He was a member of an illustrious family. His brother Ricardo was a painter, writer and engraver, and his nephew Julio Caro Baroja, son of his younger sister Carmen, was a well-known anthropologist.

Ricardo Baroja y Nessi was a Spanish painter, writer and engraver. As an engraver, he is considered the successor of Francisco Goya. He was the brother of the novelist Pío Baroja and writer/ethnologist Carmen Baroja. Carmen was the mother of anthropologist Julio Caro Baroja and director/screenwriter Pío Caro Baroja.