Reply To: Why did kimchis have seven sons who were kohen gadol

They didnt die. The gemara relates that twice on yom kippur (2 different years) the kohen gadol (her son) had to leave the beis hamikdash, and in the process became tamei requiring his brother to take over. That would account for at least three of her sons serving as kohen gadol with none dead. The story the gemara relates as to how the KG became tamei is not a negative either. The spittle of a non jew landed on him.