On the left is Charles, 2nd Earl Grey and Prime Minister from 1830-4, after whom the popular bergamot-infused blend was named and during whose premiership the final abolition of slavery and a parliamentary Reform Act were passed.
Charles was a Northumbrian by birth and his mother, Elizabeth, was also a Grey, as were at least two other female forebears. From this, you will see that he had Percy, Gascoigne, Bowes, FitzHugh, Lisle and Lumley ancestry, the latter through Edward IV.
He can be connected to these Greys. This chart for his great-grandfather, John Grey of Howick, shows him to be descended from the Sir Thomas who was executed at Southampton, including a direct male line, as there is also one to the Earl of Tankerville, who was at Sedgemoor.