|Dechenphodrang monastery at the location
where the do-ngoen dzong was built
More over, it is untrue to my knowledge to claim that do-ngoen dzong as the first ever dzong built in Bhutan, because as far as I know Chelkha dzong (it is in ruins) is said to be the first dzong built in Bhutan by Nyo Gyelwa Lhanangpa.
Who have the right date and justification to support the ascertain that the Do-ngoen dzong was built by Nyo-Gyelwa Lhanangpa. To be precise there should be more appropriate dates supporting one another.