Origin of these surnames?

[Sikeliot]

I am curious about where these surnames come from:

Breen
Gilligan
Lozada
Kerber
Mathias
Snowden

[Peyrol]

I am curious about where these surnames come from:

Breen
Gilligan
Lozada
Kerber
Mathias
Snowden


1) Belfast, Northern Ireland
2) Northeastern EIRE
3) Criollo argentinian surname
4) Landek, Northern Tyrol, Austria
5) Swansea, Wales
6) Yorkshire, England

[Comte Arnau]

Lozada definitely looks like one of those typical misspellings of z for s, like writing Cortés as Cortez.

[Roy]

Kerber for sure sounds German - derived.

[HispaniaSagrada]

Mathias I think is Hebrew or Greek and is like Matthew.