A half brother to Group III-placed stakes winner Marie de Medici (by Medicean; dam of multiple Group III winner Local Time, by Invincible Spirit) and to Hespera (by Danehill), dam of Group I-placed stakes winner Lady Penko (by Archipenko), Erupt is out of the Caerleon daughter Mare Nostrum. This of course draws in another strand of Northern Dancer, as Caerleon's sire is the great Nijinsky II, arguably the Dancer's best racing son. Fanfreluche and Nijinsky II share similar genetic backgrounds as they are both from Teddy-line mares inbred to that great sire through the full brothers Sir Gallahad III and Bull Dog. In both cases, the Sir Gallahad III cross comes through 1930 Triple Crown winner Gallant Fox via either 1935 Triple Crown winner Omaha or his full brother Flares, and the Teddy inbreeding is reinforced by multiple crosses to the speedy Domino, a highly compatible strain.
Mare Nostrum was a Group I-placed Group III winner in her own right and is a half sister to 1994 Yellow Ribbon Invitational Stakes (USA-IT) winner Aube Indienne (by Bluebird), Group III-placed stakes winner Raisonnable (by Common Grounds) and Group II-placed stakes winner Special Gallery (by Tate Gallery). Their dam, Salvora, is a winning daughter of 1980 American Horse of the Year Spectacular Bid and Grand Luxe, one of Fanfreluche's five stakes winners. A daughter of Sir Ivor, Grand Luxe produced only one stakes winner, the Mr. Prospector horse Smackover Creek, but she also produced Grade II-placed Lode (by Mr. Prospector), a champion sire in Argentina. In addition, Grand Luxe is the second dam of multiple Australian Group I winner and champion sire Flying Spur and the third dam of Australian Group I winner and champion sire Encosta de Lago.
As Erupt's sire Dubawi also carries a 4x5 cross to Northern Dancer through the great sire's sons Shareef Dancer and Lyphard, Erupt is 5x6x4x5 to the Dancer, not all that unusual for a top European horse these days. He looks like quite a nice horse off his Grand Prix de Paris form, and given the manner in which he handled dual Classic-placed Storm the Stars, it will be interesting to see how he stacks up against Golden Horn and Jack Hobbs as the European season moves toward the important late summer and fall races.