1,971
edits
Changes
m
→Relationship Calculator: spelling
Essentially, any two people are directly related by blood if they have an ancestor in common. One of these individuals may actually be an ancestor of the other - such as a great grandparent. Even in the cases of aunts and uncles, you still can calculate the relationship by searching for the common ancestor. In this case, the father or mother of the aunt or uncle will be a grandparent to the nephew or niece.
The most basic blood relationship through common ancestors is that of siblings (brothers and sisters) who are only one generation down from the common ancestor. Another special relationship is that of one of those siblings to the descendants of the other siblings. If the Active Person is a grandchild of the common ancestor, the sibling would be an aunt or uncle. Beyond that generation of descendants, there are two equivalent ways of describing the relationship. The daughter of great grandparents might be called either a grandaunt or a great aunt. (The Relationship Calculator uses the 'grand' variant.) That person is a great grandaunt to the second great grandchildren, who are four generations distant from the common ancestor. (She may also be called a second great aunt.) The reverse reationship relationship of an aunt or uncle is a nephew or niece.
Cousins (also called "first" cousins) are two generations down from the common ancestor through different siblings. "Second" cousins are thus, three generations down from the common ancestor - and so on.