 The undefeated Frankel is also inbred to Northern Dancer, but it is too early to evaluate his success as a stallion as his first crop just reached racing age in 2016.Northern Dancer lines were originally outcrossed on descendants of Mr. Prospector or Nasrullah, but this became so common that it is increasingly difficult to find horses from these lines who do not also carry Northern Dancer breeding.Outcross bloodlines can still be found, most notably through Sunday Silence and the German-bred stallion Monsun.