Complex sentence: During the following years, he wandered through Japan, fought over his inheritance with his stepmother (his father died in 1801), and married thrice late in his life, as well as producing a huge body of work.
Split into simpler sentences: During the following years, he wandered through Japan and fought over his inheritance with his stepmother (his father died in 1801). Issa married twice more late in his life, and through it all he produced a huge body of work.