Complex sentence: In 1961 she created the company Portmeirion Pottery with her husband, though the business had its beginnings in 1953, when they took over a souvenir shop in the Welsh village of Portmeirion.
Split into simpler sentences: In 1961 she created the company Portmeirion Pottery with her husband. Susan and Euan set up in business in 1953, when they took over a souvenir shop in the Welsh village of Portmeirion.