Greeks have custom named their babies after the fathers’ parents.
The French often use a child’s middle name to pay homage to set of grandparents, using both grandmothers’ first names for a girl and both grandfathers’ names for a boy.
The Spanish, known for their traditionalism, have rigid rules even for today; the first-born daughter is named after the father’s mother, whereas the first son is named after the father’s father, and so on.
Many other European countries also have customs of naming after the parents.