Principality of Wales ended in 1282.
Wales is a principality, not a duchy. Prince Charles is the current Prince of Wales.
It's in Wales. I believe 'South Wales' refers specifically to the southernmost part of the principality.
Andorra, Asturias, Grand prince, Lamballe, Liechtenstein, Monaco, Principality of Sealand, Principality of Wales.
Principality of Arbër was created in 1190.
Principality of Salm was created in 1802.
Principality of Gjirokastër was created in 1386.
Principality of Krk was created in 1451.
Principality of Samos was created in 1835.
Principality of Halberstadt was created in 1648.
Principality of Beloozero was created in 1238.
Principality of Halych was created in 1124.