Complex sentence: In 1869, Brownlow sold the "Whig" to T. Hawes and Company, which in turn sold it to Knoxville businessman Joseph A. Mabry, who had supported secession during the Civil War, but had since become friends with Brownlow.
Split into simpler sentences: In 1869, Brownlow sold the "Whig" to T. Hawes and Company, which in turn sold it to Knoxville businessman Joseph A. Mabry. Mabry had supported secession during the Civil War, but had since become friends with Brownlow.