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<Relationship Chart,Degree of Kinship>
This Family Relationship Chart depends on a rule of the Japanese civil law
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Collateral relatives Lineal descendant Collateral relatives
┌──────────────────────────────┐┌───────────┐┌────────┐
┌ ┐
│ Relatives：Blood relationship of 6 degree relatives in, 4th Great-┏━┓ Grand/Great? │
│ Spouse, Grandparents┃６┃ Grand-Uncle/Aunt │
│ Relative by marriage of 3 degree relatives in. ┗┯┛ Great-Uncle/Aunt │
│ ┏━┓┌─┐ │ Grand-Nephew/Niece │
│ Blood relationship：┃ ┃│ │：Relatives by marriage, │ Great-Nephew/Niece │
│ ┗━┛└─┘ in-laws(affinity) 3rd Great-┏┷┓ Grand:genealogical terms │
│ Number in the square：the Degree of Kinship Grandparents┃５┃ the same as great │
│ ①～③：Spouse(relatives-in-law) ┗┯┛ │
│ │ │
│ │ │
│ 2nd Great-Grand-┏━┓ 2nd Great-┏┷┓ │
│ Uncle/Aunt┃６┃ Grandparents┃４┃ │
┗━┛ ┗┯┛ │
Ancestor │ │
│ │
│ Great-Grand-┏━┓ Great-┏┷┓ ┌─┐Great- │
│ Uncle/Aunt┃５┃ Grandparents┃３┃ │３│Grandparents │
│ ┗━┛ ┗┯┛ └┬┘-in-law │
│ │ │ │
│ (1st Cousin of Grandparent) │ │ │
│ 1st Cousin┏━┓ Grand-┏━┓ ┏┷┓ ┌┴┐Grandparents │
│ twice removed┃６┃ Uncle/Aunt┃４┃ Grandparents┃２┃ │２│-in-law │
│ ┗━┛ ┗━┛ ┗┯┛ └┬┘ │
│ │ │ Uncle/Aunt │
│ (1st Cousin of Parent) │ │ -in-law │
│ 1st Cousin┏━┓ ┏━┓ ┌─┐ ┏┷┓ ┌┴┐Parents ┌─┐ │
│ once removed┃５┃ Uncle/Aunt┃３┠─┤③│ Parents┃１┃ │１│-in-law │３│ │
└ ┗━┛ ┗━┛ └─┘ ┗┯┛ └┬┘ └─┘ │
------------------ ------------------ ------------------ ------│----------│------ ----------------│
┏━┷━┓ ┌─┴─┐ │
┏━┓ ┏━┓ Sibling┏━┓ ┌─┐ ┃ ┃ │ │ ┌─┐ │
┃６┃ 1st Cousin┃４┃ Brother/Sister┃２┠─┤②│ ┃ Self ┠┬┤Spouse│Brother/Sister│２│ │
┗━┛ ┗┯┛ ┗┯┛ └─┘ ┃ ┃││ │ -in-law └┬┘ │
2nd Cousin │ │ ┗━━━┛│└─┬─┘ │ │
----------------------------│--------------------│--------------------------│---(*1)-------------------│----│
┌ ┏┷┓ ┏┷┓ ┌─┐ ┏┷┓ ┌─┐ ┌┴┐ │
│ 1st Cousin┃５┃ Nephew/Niece┃３┠─┤③│ Child┃１┠─┤①│ Nephew/Niece│３│ │
│ once removed┗┯┛ ┗┯┛ └─┘ Son/Daughter┗┯┛ └─┘ -in-law └─┘ │
│ │ │ │ │
│ │ │ │ │
│ ┏┷┓ Grand-┏┷┓ ┏┷┓ ┌─┐ │
│ 1st Cousin┃６┃ Nephew/Niece┃４┃ Grandchild┃２┠─┤②│ │
│ twice removed┗━┛ ┗┯┛ ┗┯┛ └─┘ │
│ │ │ │
│ │ │ │
│ Great-Grand-┏┷┓ Great-┏┷┓ ┌─┐ │
│ Nephew/Niece┃５┃ Grandchild┃３┠─┤③│ │
│ ┗┯┛ ┗┯┛ └─┘ │
│ │ │
Descendant │ │ │
2nd Great-Grand-┏┷┓ 2nd Great-┏┷┓ │
│ Nephew/Niece┃６┃ Grandchild┃４┃ │
│ ┗━┛ ┗┯┛ │
│ Relationship Terms in English Language │ (*1) │
│ cousin relationship(the generations trace back to siblings) │ ┌┴┐ │
│ Nth Cousin R times removed 3rd Great-┏┷┓ │１│Stepchild │
│ ordinal number = degrees of collaterality Grandchild┃５┃ └┬┘ │
│ R times removed = generation difference ┗┯┛ ┌┴┐ │
│ in-law relationship(relative-in-law) │ │２│StepGrandchild │
│ relative by marriage and blood relatives of the spouse │ └┬┘ │
│ half/step relationship(apply when parent remarry) 4th Great-┏┷┓ ┌┴┐ │
│ half siblings have one parent in common but not both Grandchild┃６┃ │３│StepGreatGrandchild │
│ stepsiblings have no parents in common ┗━┛ └─┘ │
└ ┘
└──────────────────────────────┘└───────────┘└────────┘
Collateral relatives Lineal descendant Collateral relatives
There are both relations of the father's side and the mother's side to all the ancestors.
There are both relations of the father's side and the mother's side to all the ancestors.
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Name of Relatives
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