Complex sentence: The company has it's origins in a market stall begun by Lowell Harder in 1984, and her designs were spotted by retailer John Lewis which resulted in a partnership with fellow bag company Tula.
Split into simpler sentences: The company has its origins in a market stall begun by Lowell Harder in 1984. Her designs were spotted by retailer John Lewis, which resulted in a partnership with fellow bag company Tula.