LOL! Comic artist Pedro Arizpe of Port Sherry made this cute comic called "Helping the Princess" that might explain why Princesses are being held captive therefore needing rescuing by handsome Princes so often... ;)
Y Ddraig Goch (Welsh Dragon). The Romans used the dragon as one of their symbols of power. Into battle they would carry a metal head of a dragon in which they would light a fire. This would burn fiercely in the wind and seems to be where all the legends of fire breathing dragons come from. When the Romans left Britain it seems that the dragon was adopted by others as their symbol of power. Hence the Welsh Dragon of today.