is it possible he married both ?
Paul born 28th August 1619
his son Stephen Michell born 1645
his son Christian born 1669 - 24 years later ??
as stated - familytrees are all over the place
example
this tree has his marriage as Jone Beauchamp or Nicholas as a second marriage and an X as the mother of Stephen
https://gw.geneanet.org/jencur?lang=...n=michell&oc=1
I think I have made it worse for you now looking at it again ...but thought you may want to see it