[quote=“headhonchoII”]I’m guessing, and don’t take in the wrong way, that large numbers of Taiwanese people (minnan people) could count Zheng family as their ancestors and also some Dutch blood.
Do the numbers
Divide that by an average age of 25 to get 18 generations
Simple ancestors formula 2[super]n[/super] = X
Father + Mother = 2
n = Number of Generations
X = Total number of ancestors
Multiply 2[super]18[/super] to roughly get number of ancestors going back 400 years.
However the Zhengs would have had many wives and mistresses so the total number should be much higher.
Inbreeding is a significant factor. But going back over 400 years an average number of people 4,000 ancestors. However the number should be much higher due to Zhengs being a powerful family with many mistresses and wives and better off. Many of these individuals had mixed heritage aswell. Therefore it is absolutely impossible to tell where in the lineage your genes came from as they had so many chances to jump in from different ancestors (and the same gene can jump in multiple times due to inbreeding) UNLESS you have a DNA sample from that individual or specific line of individuals. HOWEVER if you are a direct descendant of Zheng Cheng Gong through the male line you will have his Y chromosome. However it will not show if you are a descendant through any females of the line, although that is equally valid (you will have inherited the genes through the non sex chromosomes).
I doubt much of Zheng’s bloodline were left in Taiwan. Koxinga died pretty soon after he arrived in Taiwan. His first born son Zheng Jing was the king of Tong-ning for 18 years, but only had 2 off springs. The first born of Zheng Jing was murdered by his uncle and his younger brother. Both his uncle and brother and their families were under house arrest in Beijing after Qing defeated them. So his bloodline either left, or were probably killed by their own family.
By the way, Koxinga had himself a Dutch wife, she was the 16 year old daughter of the Dutch missionary Anthonius Hambroek, whom Koxiga executed for failing to convince the Dutch to surrender. Koxinga was holding Hambroek’s wife and 2 daughters hostage. Assume Koxinga did have undocumented offsprings after arriving to Taiwan, some of them could have had Dutch blood.
Anyway, the same can’t be said for the troops that survived in Taiwan. They probably had many decedents here in Taiwan.
Although Koxinga’s forces weren’t in Taiwan for that long. They were here only 22 years. The Dutch were in Southern Taiwan for 38 years and in Northern Taiwan for 23 year. The Spanish were in Northern Taiwan for 16 years.