Finally, there can be lineages outside of the family circle. In general, great institutions are lineages not very rigorously based upon families. They constitute families of souls: religious orders, universities, or even the German army. They are spiritual lineages that can be somewhat related with natural lineages, as was the case with the German army, wherein it was traditional for certain families to occupy certain posts. They can also be unrelated, as in the cases of religious orders. These types of lineages also constituted the body social of the Middle Ages.
The Christian Institution of the Family: A Dynamic Force to Regenerate Society, by Tradition, Family, Property Association. Pg. 25.