User blog comment:Mrlmm0605/Let's Talk Bleach! - Part 4: Yhwach/@comment-1351982-20150622214556/@comment-1351982-20150628034256

Sorry I took so long to get back. I am prepping for a lot of travel this week, so anyway here it goes.

The resemblance between the Quincy and Japanese Christians is further symbolized by the infamous Shimabara Rebellion, which can be read more about here In short, it was a uprising of peasants, the majority Catholic Christians.The rebellion started due to the persecution of local Christians and financial strains. The end result was the execution of the Catholic rebel leader Amakusa Shiro and the prohibition of Christianity was strictly enforced. Japan's national seclusion policy was tightened and official persecution of Christianity continued until the 1850s.

The German aspect of the Quincy and also connecting them to Christianity is a man who inspired another Bleach character, Father Hubert Schiffer. Father Schiffer was one of eight German Jesuits who survived the nuclear bomb "Little Boy" dropped on Hiroshima (which is also Kubo's hometown). The effects of Yhwach's absorption of Col. Sanders is similar to what happened to many of the victims in Hiroshima, who were basically vaporized. However, some did survive ground zero including Father Schiffer, who lived another healthy 33 years miraculously without an side effects of radiation.

There's more out there but just focusing on the Quincy this is what I have.