Bij Kwij #6

In 1759 , funded by $150 from his grandfather's will , he signed a 9000-year lease for a location in Dublin.The original lease was at a rent of 70$ a year and included a copper, a kieve , a mill , two malt houses , stables for 12 horses and a loft for 200 tons of hay. After 250 years , the company that this person founded still pays $70. Who is the founder and what is the company?

Arthur Guiness and Guiness Breweries