Greencastle, Anglesea, Wales ?
I have an ancestor who was born in 1634. The information I have says he was born in Greencastle, Anglesea, Wales. Using modern internet searching, I see lots of Greencastle(s) around the UK (mostly Ireland). I have found information online that claims there is a Castell Moel in Wales that used to be known with the similar name but it is south and not in Anglesey/Anglesea; so that conflicts. I am wondering if anyone has advice of where/how I can find maps or locations of places dating back in the 1600s (or other dates). Are there cemetary resources or certain church resources, I should be looking? Please help my lack of understanding and thank you for your time.