Final answer:
Randolph McCoy, the patriarch of the McCoy family, lost four of his children (three sons and a daughter) as a result of the feud with the Hatfield family in the late 19th century.
Step-by-step explanation:
The question pertains to the historical feud between the Hatfield and McCoy families, which took place in the late 19th century along the Tug Fork of the Big Sandy River between West Virginia and Kentucky. Rand' McCoy, often referred to as Randolph McCoy, was the patriarch of the McCoy family. During the long-standing conflict, Randolph McCoy lost several of his children. Specifically, he lost three sons, Tolbert, Pharmer, and Randolph Jr., who were killed during the feud, and a daughter, Alifair, who was killed during the New Year’s Night Massacre.