[2] King Robert III in 1398[3] granted a further charter to Sir George Leslie and Elizabeth his spouse (the King's niece) of the Barony of Fythkill on the provision that for all time to come his heirs should render to the King or his successors, in the name of fee, ‘a pair of white gloves at the Market Cross of Cupar every Whitsunday’; shortly after, the Barony of Fythkill was renamed as “Leslie”, as in 1455 a charter related to Sir George's son Norman, who succeeded him, refers to ‘the Barony of Leslie in the County of Fife’.
During the Jacobite Rising of 1715 the Leslie family supported the Hanoverian government and commanded a cavalry unit at the Battle of Sheriffmuir.
Leslie House was rebuilt anew as a three-storey classical mansion between 1765 and 1767, with later modifications by Sir Robert Lorimer.
The trustees held the lands including the feudal titles until 1919 when they were purchased by Captain William Crundall, a property developer.
[12] The latter sold Leslie House the following year to Sir Robert Spencer Nairn who donated it in 1952 to the Church of Scotland,[13] while retaining other parts of the feudal lands, including all the titles, in his family until 2004, when he was succeeded by a Canadian philanthropist Sir Philip Christopher Ondaatje for the following twenty years.
In November 2024,[14] Giacomo Merello, an Italian and Antiguan lawyer and diplomat,[15] succeeded in the Barony and Lordship of Leslie.