Noun
consanguinuity (uncountable)
The state of being consanguineous.
A papal annulment of Magnus' alleged first marriage and a dispensation for the second (necessary because of consanguinuity ) were issued ten years later, in 1286. Source: Internet
Simon de Montfort shared various levels of consanguinuity and "by-marriage" connections with both English and French royal lineages. Source: Internet