 Unlike the similar title for leading sire in North America, the stallion in question does not need to have resided in Great Britain or Ireland during his stud career, although the vast majority have done so.Northern Dancer is the most notable example of a North American-based stallion who won this title.The Northern Dancer sire line has dominated the list for the last several decades, mostly through his son Sadler's Wells (14 titles) and grandson Galileo.