Ieyasu family??? Ieyasu was the name of the warlord right? doesn't she mean the families related to Ieyasu like Tokugawa (that's still alive and well as a clan) or the Matsudaira which was the original name of the clan? unless there really was a family clan called the Ieyasu clan back in the edo period or it was just created in this manga
@Umesan Yeah, that's strange.
Also, Vlad (1428/31 – 1476/77) is a bit older than Ieyasu (1543 – 1616), but Bathory (1560 – 1614) isn't, so maybe that's an indication they are talking about something else? Or the author was careless ...