Why did Toyotomi Hideyoshi die soon after his death?

First, there is no stable ruling core group. Toyotomi Hideyoshi was born in a very humble background, and he climbed up step by step under Nobunaga, and so did his detained groups, including Yuchai Show (Brother) and Hehe. Some people were recruited when Hideyoshi was sealed near Jiangchangbin City, such as Ishida Mitsunari; There are also domestic ministers who were appointed to spread Himeji, such as Konishi Yukinaga and Kuroda Gao Qiao; Finally, some colleagues were integrated by Hideyoshi after mastering the Weaver Girl. In addition, Toyotomi Hideyoshi adheres to the tradition of Nobuyasu Oda, and pursues the functions of general in charge of war and general in charge of internal affairs. Therefore, the opposition between the sandwich school and the martial arts school formed in the family, but Toyotomi Hideyoshi did not solve this problem well before his death, which eventually led to the division and contradiction within the family, and was used by Tokugawa Ieyasu to provoke the war between Guan Yuan and overthrow the Toyotomi regime.

Second, the spell of separatist forces left behind when unifying the world. During the war, Toyotomi Hideyoshi was good at siege and diplomacy. His masterpiece "Hungry to Kill Three Trees, Eager to Kill Birds, No Soldiers, Drive Takamatsu" is a typical representative. Therefore, in the course of the later unified war, he used many diplomatic means to subdue local strongmen, rather than completely destroying them. The only big power to be really eliminated should be Houbeitiao. Tokugawa Ieyasu, in particular, was defeated in the long battle of Xiaomushan. At this time, Toyotomi Hideyoshi, who was worried about the unstable ruling foundation, made peace with Tokugawa Ieyasu quickly, exchanged very favorable conditions for Tokugawa's surrender, and planted the curse;

Third, the origin of Toyotomi Hideyoshi. As mentioned earlier, his background is very humble, and he does not belong to Genji or Ping's background in the Takeshi family. In the end, he just became a general, not as a representative of the Wu family. It may also be because of this reason that Toyotomi Hideyoshi paid more attention to the civilian schools in Ishida Mitsunari in his later period. At that time, Wu's influence in Japan was very strong, and the concept of samurai mastering political power was deeply rooted in the hearts of the people. This also corresponds to the opposition of Xiuji's literary martial arts school in the first point.