A grandparent of one's spouse.
My grandparent-in-law is a good person.
by Rwopazaq November 24, 2019

The wife of one's great-grandson.
My great-granddaughter-in-law is a good person.
by Rwopazaq November 24, 2019

My double-sibling-in-law is a good person.
by Rwopazaq November 24, 2019

The husband of one's great-granddaughter.
My great-grandson-in-law is a good person.
by Rwopazaq November 24, 2019

The great-grandparent of one's spouse.
My great-grandparent-in-law is a good person.
by Rwopazaq November 24, 2019

Half-sibling's great-great-grandchild.
My half-great-great-grandnibling is a good person.
by Rwopazaq November 24, 2019

Half-sibling's great-great-grandson.
My half-great-great-grandnephew is a good person.
by Rwopazaq November 24, 2019
