S2-E17 - The Brief and Often Forgotten Kingdom of Dongning 東寧王國

Koxinga's eldest son, Zheng Jing, -- the ruler of
the short-lived Kingdom of Dongning (1661-1683) -- almost
lost his head in his late teens. Daddy Zheng Chenggong (Koxinga)
twice ordered his execution for fooling around with a wet nurse.
But Zheng Jing survived and soon after became ruler-warlord
upon Koxinga's sudden death. Koxinga (鄭成功) and his armies had
defeated the Dutch in modern-day Tainan, but their goal
wasn't Taiwan. They wanted to use Formosa as a base from which to
retake China and restore the Ming Dynasty, which had been
toppled by northern foreigners -- the Manchus -- who
established the Qing Dynasty. When Koxinga's son Zheng Jing
(鄭經) came to power, however, he and some of his generals set
themselves a different goal -- conquering the Spanish
Philippines!! (What??)