C.S. Lewis did not have any biological children. He married Joy Davidman in 1956, and although they did not have children together, Joy had two sons from her previous marriage, David and Douglas, whom Lewis became a stepfather to.
Lewis’s role as a stepfather greatly influenced his life and work, especially in his writings on the importance of family and relationships. He often reflected on the joys and challenges of family through his literature, capturing the essence of love and responsibility.