inbreeding: THE DARLEY ARABIAN (4x5) - BAY PEG (4x5) - BAY BOLTON (4x4) - OLD SPOT MARE (5x5) - GREY HAUTBOY (5x5) - MAKELESS MARE (5x5) - BYERLEY TURK MARE (5x5) - SPANKER MARE (5x6) - SPANKER (6x6) - OLD MOROCCO MARE (6x6) - OLD HAUTBOY (6x6) - BYERLEY TURK (6x6) - TAFFOLET BARB MARE (6x6)