Lý Thánh Tông
According to "Từ điển Bách khoa toàn thư Việt Nam", the birthyear of Ỷ Lan was unknown, she was born in the Thổ Lỗi (later changed to Siêu Loại) village, now Dương Xá commune, Gia Lam, Hanoi. It was said that the Emperor Lý Thánh Tông was unable to have his own child up to the age of 40, therefore he paid visit to Buddhist pagodas all over the country to pray for a child, naturally the escort of Lý Thánh Tông often attracted attention of people.