Warden of the Swans and Marker of the Swans — 1993
These were once one job, called the Keeper of the Swans, but in 1993 it was decided one man simply wasn’t enough — the duties were then divided into Warden of the Swans and Marker of the Swans, and the roles are currently held by Professor Christopher Perrins, LVO and David Barber, MVO.