[4] Princely Heir's dam Meis El-Reem was a top-class racemate who won the Prix d'Astarte and the Child Stakes as well as finishing second to Pebbles in the 1000 Guineas.
[5] Meis El-Reem was descended from the Italian broodmare Tresa (foaled 1946) whose most notable offspring was the Prix du Jockey Club winner Tamanar.
[7] On 4 July with Weaver again in the saddle, Princely Heir started 5/4 favourite for a novice race (for horses with no more than one previous win) over the same distance at Beverley Racecourse.
Racing on heavy ground he took the lead from the start, opened up a clear advantage approaching the final furlong and came home nine lengths ahead of his three opponents.
[8] Nine days after his win at Beverley, the colt was moved up in class and distance when he was sent to Ireland to contest the Group 3 Curragh Stakes over six and a half furlongs.
Jason Weaver resumed his partnership with Princely Heir when the colt was stepped up to Group 1 class for the Phoenix Stakes at Leopardstown Racecourse on 10 August.
He kept on strongly however to gain the advantage in the final strides and won by a head from Asfurah with Harbour Master taking third ahead of Hopping Higgins and Tarascon.
At Royal Ascot in June the colt was dropped back to sprint distances but finished unplaced in the Cork and Orrery Stakes over six furlongs.