Lu became more obstinate after her death and more prone to influence from his chamberlain, Hui.

Lu was married to Lady Wumei, an intelligent, vivacious woman who was beloved across the Earth Kingdom, and a source of wisdom in his ear. He also did not have any faith in his grandchildren's potential as earthbenders. In contrast, his relationship with his actual children and grandchildren was marked by disappointment, as none of them turned out to be capable bureaucrats, merchants, accountants, or politicians like himself. Lu grew very close to Jianzhu, treating him like a son.

Lu Beifong was the earthbending master of Jianzhu, who in turn taught earthbending to Avatar Kuruk. 4.2 Avatar Legends: The Roleplaying Game.