Original sentence: In 1870 the 3rd Marquess (later the 1st Duke )  had Henry Clutton add a Porte-Cochére added to the north and has many of the State rooms redesigned
Edited sentence: In 1870 the 3rd Marquess (later the 1st Duke)  had Henry Clutton add a Porte-Cochére added to the north and has many of the State rooms redesigned