Homosexuality
Gaozu was the first Chinese emperor to have an intimate male companion, Jiru, as listed in the official histories. As Sima Qian noted, Gaozu, for all his coarseness and blunt manners, was won by the charms of Jiru. Jiru did not have any particular talent or ability, and won prominence simply by his looks and graces. He was by Gaozu's side day and night, and all the high ministers were obliged to apply to them when they wished to speak to the emperor. Gaozu's example of officially elevating a male lover to the top of the administration would be followed by nine more rulers of the Han Dynasty.
Read more about this topic: Emperor Gaozu Of Han