Ernest Hemingway and Pauline Pfeiffer are Divorced
Pfeiffer married Hemingway on May 10, 1927 but the match was difficult.
She was wealthy and he was a best-selling author (The Sun Also Rises) with three books in print. Although they had two sons (Patrick and Gregory), Pfeiffer was often forced to choose between following Hemingway on his travels or minding her sons. As a result she failed at both sets of relationships. Hemingway went to Spain in 1937 and there began an affair with Martha Gellhorn. He and Pfeiffer were divorced on November 4, 1940 and he married Gellhorn three weeks later.
In writing the novel, he gave in to commercial pressures, writing the novel in the way that he did to increase the chances of serializing it or of selling it to a book club. Quite directly, For Whom the Bell Tolls was shaped stylistically by Hemingway's divorce from Pauline Pfeiffer and desire to marry Martha Gellhorn. The novel provided Hemingway with financial independence and the money to maintain the lifestyle he had grown used to in the 1930s, but which he would have lost with the loss of the Pfeiffer family fortune.