As for the relationship between the two expressions, the OED has this to say:
“The theory that the origin of the phrase [‘beyond the pale’] relates to any of several specific regions, such as the area of Ireland formerly called the Pale … or the Pale of Settlement in Russia … is not supported by the early historical evidence and is likely to be a later rationalization.”
From https://www.grammarphobia.com/blog/2012/12/beyond-the-pale.h...
As for the relationship between the two expressions, the OED has this to say:
“The theory that the origin of the phrase [‘beyond the pale’] relates to any of several specific regions, such as the area of Ireland formerly called the Pale … or the Pale of Settlement in Russia … is not supported by the early historical evidence and is likely to be a later rationalization.”