The Cayzer baronetcy, of Tylney in the County of Southampton, was created on 29 January 1924 for the businessman and Conservative politician Herbert Robin Cayzer. He was the fifth son of Sir Charles Cayzer, 1st Baronet, of the 1904 creation. In 1939, he was raised to the peerage as Baron Rotherwick, of Tylney. [1]
His grandson, the 3rd Baron and 3rd Baronet of Tylney, succeeded additionally (as 6th Baronet) to the Cayzer baronetcy of Gartmore on 27 February 2012. [2]