Complex sentence: Escher, who had been very fond of and inspired by the landscapes in Italy, was decidedly unhappy in Switzerland, and in 1937, the family moved again, to Uccle, a suburb of Brussels, Belgium.
Split into simpler sentences: Escher, who had been very fond of and inspired by the landscapes in Italy, was decidedly unhappy in Switzerland. In 1937, the family moved again, to Uccle, a suburb of Brussels, Belgium.