Meghan Markle 's latest business venture has inadvertently given a sales boost to King Charles ' own product, it has been reported. The Duchess of Sussex recently unveiled her newest offering - jars of strawberry jam from her freshly launched lifestyle brand , American Riviera Orchard. She sent 50 of these jars to influencers, including fashion designer Tracy Robbins and Argentine socialite Delfina Balquier, for taste testing. Each jar is hand-numbered from 1-50, but the retail price and