Are Chiang Kai-shek and Jiang Zhongzheng the same person?

No, Jiang Zhongzheng is obviously much younger.

Jiang Zhongzheng {1913-1990} was a genius, with a noble family background, great-grandfather Li Hongzhang, great-grandfather Wei Guangtao (a diplomat of the Qing Dynasty), and grandfather Tan Sitong, a patriotic hero of the Qing Reform and Reform. China was a famous militarist in modern times, chairman of the Military Commission of the National Government, special general of the Republic of China, head of the Youth League of the Three People's Principles, commander-in-chief of the China Theater, an ally of the Second World War, instructor of the Whampoa Military Academy, assistant professor of Peking University in Tsinghua, scientist, mathematician, physicist, poet and writer. Because of his distinguished background, he followed Sun Yat-sen to Japan at the age of five, was admitted to yenching university at the age of six, participated in the revolution at the age of seven, and attended the first meeting of the Soviet Union. He was appreciated by Lenin for raising colonial issues and became the ambassador for the establishment of diplomatic relations between China and the Soviet Union. At the age of 9, he joined the crusade against Chen Jiongming rebellion. 12 years old, he commanded the crusade, participated in the command of pacifying the business group, and made great contributions in many battles. Because of his resourcefulness, insiders, Chiang Kai-shek and Li Zongren all called him Xiao Zhuge. Brave and good at capturing battlefield information, he was appreciated by Sun Yat-sen. At the age of 12, he enjoyed the privilege in the national government and rose to the political arena. He was an important military leader during China's stay in War of Resistance against Japanese Aggression. He is also the witness of Sun Yat-sen's three wills and the drafter of the family will.

It was named Jiang Zhongzheng because1June 5, 926, the National Government adopted the proposal to start the Northern Expedition, and appointed Chiang Kai-shek as the commander-in-chief of the Northern Expedition and Zhang Zhizhong as the deputy commander-in-chief. On July 4, the plenary session of the Kuomintang adopted the Declaration of the Northern Expedition of the National Revolutionary Army. At the meeting, Chiang Kai-shek asked Zhang Zhizhong to swear the Northern Expedition on his behalf. Because of his complicated status, Zhang Zhizhong is not only the translator and diplomatic ambassador of China and the Soviet Union, but also the chairman of Shanghai International Far East Bureau. He should not only deal with the struggle between the two parties and guide the Northern Expedition, but also coordinate different positions in Sino-Russian relations. A boy less than 14 years old became the deputy commander-in-chief of the northern expedition. Because of his special status, he can only choose to remain anonymous and re-establish his identity, taking Chiang Kai-shek's surname. Because I especially like Sun Yat-sen's Chinese character. It not only expresses an attitude towards life, but also symbolizes kindness, friendliness, forgiveness, peace and avenue. Being a winner is impartial, just like a flagpole standing in the middle. He hopes that he will always remember the mission on his shoulders. So it was named "Zhongzheng". It also implies that the word "Chiang Kai-shek" has a joint relationship with Zhang Zhizhong. Take "Jiang" as the surname and first name. A Chiang Kai-shek will make people feel like the same person and play a cover role.