Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and twenty-six great-great-great-grandparents in common.
Tredecuple-4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and twenty-six great-great-great-grandparents in common.
My tredecuple-fourth-cousin is a good person.
Ninth-cousin-five-times-removed (9C5R).
My ninth-cousin-5X-removed is a good person.
Third-cousin-once-removed (3C1R).
My third-cousin-1X-removed is a good person.
1. The spouse of one's grandparent's sibling's child.
2. The child of one's grandparent-in-law's sibling.
My first cousin-pibling-in-law is a good person.
Fourth-cousin-once-removed (4C1R).
My fourth-cousin-1X-removed is a good person.
Sesqui-first cousin’s grandchild.
My sesqui-great-cousin-nibling is a good person.