She could be considered your step-grandmother through marriage. However, she is not related to you, genetically. But you can call her grandma if you want and she is okay with it.
Sandwich
The correct possessive form of "grandfathers" is "grandfathers'".
Your grandfathers' sisters' grandchildren are your second cousins.
The cast of The Gift of the Grandfathers - 1997 includes: Gordon Tootoosis as Narrator
dsthfkalssa
She will be your aunty
Two people whose grandfathers were brothers are second cousins to each other.
bob i think
Ted
cousin
cornilious
Grandfathers name
Lou pickles