sesqui-first-cousin-twice-removed

1- Child of their parent’s half-grandpibling with the other parent’s grandpibling.
2- Child of their parent’s half-grandnibling with the other parent’s grandnibling.
3- Child of their parent’s half-grandpibling with the other parent’s grandnibling.
4- Child of their parent’s grandpibling with the other parent’s half-grandnibling.
5- Grandparent's sesqui-first-cousin.
6- Sesqui-first-cousin's grandchild.

My sesqui-first-cousin-twice-removed is a good person.

nephew-in-law

1- Niece's husband.
2- Spouse's nephew.

My nephew-in-law is a good person.

uncle-in-law

1- Aunt's husband.
2- Spouse's uncle.

My uncle-in-law is a good person.