Why do they have same baptismal name? I have seen many of Catholics have their baptismal name same as that of their grandparents. Why they do so? Is it given in bible?
In Italy, it is tradition to be named after your grandparents. Firstborn children are named after their paternal grandparents and second-born children are named after their maternal grandparents. This is more of a cultural tradition than a religious tradition, and may be common in multiple European countries.