It started as a handbag company but the couple grew it into a worldwide brand selling womens' clothing, jewellery and homewares.

They sold the label to Neiman Marcus Group in 2006. There are more than 300 Kate Spade stores in the US and abroad.

After selling her label, Spade continued to embody the brand's aesthetic - she often wore bright prints, thick glasses and sported a 1960s style bouffant hairstyle. She was considered one of the first in a powerful wave of female American contemporary designers in the 1990s.

After selling their label, Kate and Andy Spade launched an accessories brand named Frances Valentine.

The couple have a 13-year-old daughter.