Lý Thái Tổ

Lý Thái Tổ ( March 974 – 31 March 1028), birth name Lý Công Uẩn , temple name Thái Tổ, was a Vietnamese monarch, the founder of the House of Lý of Đại Việt; he reigned from 1009 to 1028.
In 1010, he issued a royal decree called Edict on the Transfer of the Capital for moving the imperial capital from Hoa Lư to Đại La. While travelling from Hoa Lư to the imperial settlement, he claimed to have had a vision of "a yellow dragon ascending" which inspired him to change the new settlement's name from Đại La to Thăng Long which means "Ascending Dragon" (modern day Hà Nội) . He is generally viewed as the founder of the city of Hanoi. Lý Công Uẩn also built Trường An Citadel in the former capital Hoa Lư to further fortify the garrison for military defense and Thiên Đức Citadel in Cổ Pháp village as a tributary honor to his childhood home town.