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Consanguinity Chart

Degrees of family relationships can be determined by both blood (consanguinity) and marriage (affinity). A relationship by blood refers to how closely two people are genetically related, such as siblings being second-degree relatives. A relationship by marriage describes the ties between in-laws, with a spouse considered a first-degree relative by marriage. The degree of relationship through marriage mirrors the degree of the underlying blood relationship, so a sibling-in-law is also a second-degree relative through affinity.

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875 views1 page

Consanguinity Chart

Degrees of family relationships can be determined by both blood (consanguinity) and marriage (affinity). A relationship by blood refers to how closely two people are genetically related, such as siblings being second-degree relatives. A relationship by marriage describes the ties between in-laws, with a spouse considered a first-degree relative by marriage. The degree of relationship through marriage mirrors the degree of the underlying blood relationship, so a sibling-in-law is also a second-degree relative through affinity.

Uploaded by

Vanessa Alarcon
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Degrees of Family Relationships

Degrees of
relationship by blood
(consanguinity)

Relationships by Marriage (Affinity)


A relationship by blood is also referred to as being related by consanguinity. A relationship by marriage is sometimes referred
to as being related by affinity.

A husband and wife are related in the first degree by marriage. For other relationships by marriage, the degree of relationship
is the same as the degree of underlying relationship by blood Example: John and Steve are brothers and are therefore
second-degree relatives by blood. John’s wife, Linda, is related to Steve in the second degree by marriage.

See Tex. Gov’t Code Section 573.025

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