Complex sentence: It was purchased shortly aferwards by Sir Richard Shireburne of Stonyhurst and the Shireburnes held the manor until 1754 before it passed to their cousins, the Welds.
Split into simpler sentences: It was purchased shortly aferwards by Sir Richard Shireburne of Stonyhurst. The Shireburnes held the manor until 1754 before it passed to their cousins, the Welds.