Complex sentence: She suffered depression after the birth of her first child in 1882, and after this, she often spent the winters at spas abroad: she would continue to spend the winters outside Sweden from that year until her death.
Split into simpler sentences: She suffered depression after the birth of her first child in 1882, and after this, she often spent the winters at spas abroad. She would continue to spend the winters outside Sweden from that year until her death.