Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and nineteen great-great-great-grandparents in common.
Irregular-decuple-fourth-cousin.
Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and eleven great-great-great-grandparents in common.
Irregular-sextuple-fourth-cousin.
Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and sixteen great-great-great-grandparents in common.
Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents and four great-great-grandparents in common.
Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and eight great-great-great-grandparents in common.
1- Grandpibling's grandchild.
2- Someone who, in relation to others, has zero parents, zero grandparents and two great-grandparents in common.
Someone who, in relation to others, has zero parents, zero grandparents and seven great-grandparents in common.
Irregular-quadruple-second-cousin.