Gendarme is out of Believe (Sunday Silence), champion older mare in Japan in 2003 and a four-time Listed winner there. Gendarme is her seventh and final foal, and one of six winners and three stakes winners from seven runners. His half-sisters include the Listed winners Fiducia (Medaglia D'Oro) and Faridat (Kingmambo), the latter third in the Gr.1 Yasuda Kinen.

Second dam Great Christine (Danzig) won in the US and bred six winners, Believe the best of them.

Third dam Great Lady M. (Icecapade) won seven stakes races and produced 11 further winners. They include the five-time Grade 1 winner Lady's Secret (Secretariat), grandam of Sound Barrier, a Group 2 winner in Japan, and the stakes winner Missy Slew (Seattle Slew), dam of the stakes winner Vow.

This is also the family of the Group 1 winners Circle Of Life (Epiphaneia) and Shamrock Rose (First Dude).