The children of a first cousin would be called a first cousin, once removed. First cousins are defined as children of siblings.
"Once removed" always refers to the children of a cousin, whether it be a first or second cousin. A second cousin is defined as the children of the children of siblings. For example, Frank and Johnny are brothers. Frank has one child named Sue and Johnny has one child named Melissa. Melissa and Sue are first cousins. Sue has a child named Bobby and Melissa has a child named Armando. Armando and Bobby are second cousins. Melissa is a first cousin, once removed to Bobby. Sue is a first cousin, once removed to Armando. This pattern can repeat itself through many generations of cousins. "Removed" simply means that two people are cousins with a generation in between them, or a generation removed.
Knowing the way that cousins work and how they are named is a way for people to track their genealogy. A person who understands who their third cousin twice removed is will be able to better understand where they came from. People can also have a better understanding of the family members they share with certain cousins.Learn More
A parent's first cousin is the child's first cousin once removed. "Once removed" symbolizes the difference in genealogical generation. There is more genealogical difference between a first cousin once removed than a first cousin because of the introduction of another ancestral line from the person that married into the family.Full Answer >
One's grandmother's brother is usually called a great-uncle, in terms of familial relationships. Grand-uncle is another name for this kin, but the term isn't used as often.Full Answer >
The son of a niece is called a "great-nephew." The child refers to the aunt or uncle of his mother as his "great-aunt" or "great-uncle."Full Answer >
A sister or sister-in-law of a grandmother or grandfather is commonly called a "great aunt" or, less frequently, a "grand aunt." Amy Johnson Crow of Ancestry.com argues that "grand aunt" is technically the more correct term, though it is less common.Full Answer >