Your brothers granddaughter is your grandniece.
Your brother's children and your granddaughter are first cousins once removed to each other.
Your granddaughter is your brother's grand niece (or some would say, great niece).
Yes, you would be the step-nan (or step-grandmother) to your granddaughter's step-brothers.
Nephews and nieces
Your brothers great granddaughter is your great great niece.
your niece
Your uncle's granddaughter and your child are second cousins.
Your daughter and your brother's child are first cousins to each other.Your daughter and your brother's granddaughter are first cousins, once removed, to each other. The "once removed" refers to the fact that they are separated by one generation if you count from their common ancestor, your parents.
You granddaughter is a great great niece of your aunt. Your aunt is your granddaughter's great great aunt.
"Relative" refers to something considered in relation to something else, such as a family member. "Relation" refers to the way in which two or more things are connected or in a particular type of association with each other.
Great neice
Your granddaughter and grand niece are second cousins to each other.
Your great nephew and your granddaughter are second cousins to each other.
There is 2 answers your mothers brothers children or your dads sister;"s children