See: List of castles, Castles in England, Castles in Scotland, Castles in Northern Ireland
Anglesey
Clwyd
Dyfed
Glamorgan
Gwent
Gwynedd
Powys
South Glamorgan
West Glamorgan
... voiceless h (the voiceless h, called the visarga[?], tends to repeat the preceding vowel after itself) and the anusvaara, which often appears as nasalization of the th ...