The king had no children when he was 43, so he sent for a 40-year-old widow. Who did the widow give birth to?

The king who married a widow because she had no children was Emperor Wu of Song, and the widow gave birth to Liu Yilong. When Emperor Wu of Song was just a civilian, he married Zang Aiqin. They have been on good terms since they got married, and soon their first daughter was born. After his daughter was born, Emperor Wu of Song left home to join the army. Later, with his courage and ability, Emperor Wu of Song rose step by step, and at the age of forty, he became an important courtier in the Eastern Jin Dynasty.

When Emperor Wu of Song pulled Zang Aiqin to his side, Zang Aiqin was actually not young, so he couldn't give birth to a child for Emperor Wu of Song for a long time. Emperor Wu of song has a high position, so naturally he can't let himself be childless, so he found a widow, that is, Hu took her as his concubine. Besides Hu, Liu Yu, who was eager to have children, accepted several other concubines. One of them named Zhang Que gave birth to her first son, Liu Yifu, who was originally born by Hu. Later, Sun Shi's concubine gave birth to a man named Liu Yizhen. The son born to Hu is the third son of Emperor Wu of Song. Hu is almost forty years old this year.

Because Liu Hu is a concubine for children, she doesn't have much affection for her, and the third son doesn't like it. But Liu Yilong is very clever, and his ability far exceeds that of other brothers. However, Emperor Wu of Song still prefers his eldest son Liu Yifu, so the person who inherits the throne after his death is also Liu Yifu. It's just that Liu Yifu is incompetent, so Liu's game of Song Dynasty became very chaotic after his superior position. So about two years later, Liu Yifu was killed because the courtiers staged a coup.

After Liu Yifu, there was another Liu Yizhen, and Liu Yizhen was not a courtier's candidate for the king, so they also sent someone to kill him. After two people in front of Liu Yilong were killed, Liu Yilong, who had outstanding ability, was welcomed back to Beijing and became emperor. And Liu Yilong did live up to expectations and managed Liu Song well, which was the heyday of the Liu Song regime.