In a stroke of fortune, Northern Zhou's Emperor Wu suddenly died and his general Yang Jian attempted to take the throne. This stopped the southern advance of the Northern Troops. The respite was short though as after Yang Jian defeated his rival General Yuchi Jiong, he usurped the throne from Emperor Jing of Northern Zhou and established the Sui dynasty, crowning himself Emperor Wen of Sui. He proceeded to invade the south to reunify China. Emperor Xuan had just died and his incompetent son Chen Shubao (Houzhu of Chen) took power. He was licentious and wasteful, resulting in chaos and corruption in the government; many officials heavily exploited the people, causing great suffering. In planning tactics to defeat the Chen dynasty, Emperor Wen of Sui took the suggestion of his general Gao Jiong and waited until the South were harvesting their crops to entirely burn the farmland, crippling the strength of the Chen dynasty. In 588, Emperor Wen of Sui sent his son Yang Guang (who would become Emperor Yang of Sui) to finally vanquish the Chen dynasty. Chen Shubao relied on the natural barrier of the Yangtze River and continued as always with his festive and licentious activities. The next year, Sui forces captured the Chen capital of Jiankang. Chen Shubao and his favorite concubine Zhang Lihua attempted to hide in a well but eventually were captured by Sui forces, thus ending the Chen dynasty.