George Washington Custis Lee
His grandfather George Washington Custis was the step-grandson and adopted son of George Washington and grandson of Martha Custis Washington . 
<triplet> George Washington Custis <subj> George Washington <obj> relative <triplet> George Washington <subj> George Washington Custis <obj> relative <subj> Martha Custis Washington <obj> spouse <triplet> Martha Custis Washington <subj> George Washington <obj> spouse