Reg sapinda relationship

Hello ,

I have a question regarding SAPINDA .

My great grand father(Maternal) has 2 wives .He married my great grandmother after his first wife's death..

My fiance is his first wife's daughter's daughters' daughter's son. 
I am second wifes daughter's daughther's daughther.

Please let me know if our relationship falls under SAPINDA.

Thank you.

Regards,

PS