Duchies of Cornwall and Lancaster likely to make at least £50m from leasing land to services such as NHS and schools, according to investigation King Charles and Prince William’s property empires are taking millions of pounds from cash-strapped charities and public services including the NHS, state schools and prisons, according to a new investigation.The reports claim the Duchies of Lancaster and Cornwall, which are exempt from business taxes and used to fund the royals’ lifestyles and philanthropic work, are set to make at least £50m from leasing land to public services. The two duchies hold a total of more than