Spanish Last Names: Deep Roots in Mexico: Most common last names in Mexico have Spanish origins, many of them patronymic, meaning they are derived from the names of fathers or ancestors.

Toponymic – these names are derived from place of residence, birth or family origin. Like: Brzeziński. Patronymic – usually derived from a person's given name and usually ends in a suffix suggesting a ...

The ancient Welsh patronymic naming system can cause significant problems for genealogists. The old tendency to anglicise Welsh names can also present another hurdle for Welsh genealogists.