Mangoustine is a grey (officially "bay") filly bred in France by Ecurie des Monceaux, Lordship Stud & Qatar Bloodstock.
[3] Mangoustine's dam Zotilla showed no racing ability, but was a half-sister to Flotilla, who won the Breeders' Cup Juvenile Fillies Turf and the Poule d'Essai des Pouliches.
She was descended from Miss Ribot, a mare whose wins included the Santa Ana Stakes in 1969 and who was the female line ancestor of Lethal Force.
[6] For her final run of the year Mangoustine was dropped back in distance but moved up in class to contest the Group 3 Prix Miesque over 1400 metres at Chantilly Racecourse on 26 October.
[7] After the race Frederic Rossi said "I suppose I felt a bit of pressure because we've said publicly we feel she is a Group 1 filly so that meant she needed to win.
[9] On her first appearance as a three-year-old she was partnered by Gerald Mosse when she started the 4.5/1 second favourite Prix de la Grotte on 17 April at Longchamp Racecourse.