Grenadier Guards was born in 2018. He is by Frankel out of Wavell Avenue by Harlington.
Regally-bred Grenadier Guards, by unbeaten world champion Frankel out of Grade 1 Breeders' Cup Filly & Mare Sprint winner Wavell Avenue, won the Grade 1 Asahi Hai Futurity Stakes in a juvenile course-record time of 1:32.3 over 1600m on turf at Hanshin. He also landed the Grade 2 Hanshin Cup and finished 3rd in the Grade 1 NHK Mile Cup at 3.
Grenadier Guards entered stud in Japan in 2024.