North and South
North and South had two sequels. They are called Love and War and Heaven and Hell. The books were written in 1982, 1984, and 1987.
There were also TV versions made. Three miniseries were done in 1985, 1986, and 1994. The two main characters were played by James Read and Patrick Swayze (Swayze's character does not appear in the third part).