Question: What is the date of birth of Empress Xiaoyichun's husband?
Sentence (from "Qianlong Emperor"): The Emperor is about five feet ten inches in height, and of a slender but elegant form; his complexion is comparatively fair, though his eyes are dark; his nose is rather aquiline, and the whole of his countenance presents a perfect regularity of feature, which, by no means, announce the great age he is said to have attained; his person is attracting, and his deportment accompanied by an affability, which, without lessening the dignity of the prince, evinces the amiable character of the man.
Relevant evidence: No