ISFJ Mom + ENTP Dad ---> INTP me
Maternal grandmother was ISTJ, I think. Maternal grandfather is ISFJ. My mother has a sister who's ISTJ. Lots of Si doms on that side of the family. Don't know my dad's parents well enough to say, but there seems to be quite a bit of Ne among his siblings based on what I've seen.
I also have a half-brother. Same ISFJ mom as me, and I think his dad's ISTJ, and he's ISTP.