I imagine a special Dynasty (or Special Faction). It is Family but not by sharing physical blood.
Character A have been created his own Special Faction. He/she educated and raised B like as his/her child. A-B relation is Master-Student but like as Father/Mother - Son/Daughter. A's dream finally succeeded by his/her best student B and B accomplished it at last. A and B's scholarly faction flourished through centuries by Family-like members.
It might be possible to apply non-physical blood shared dynasty (or special faction) if Adoption (or localised else) is applicated.
Character A have been created his own Special Faction. He/she educated and raised B like as his/her child. A-B relation is Master-Student but like as Father/Mother - Son/Daughter. A's dream finally succeeded by his/her best student B and B accomplished it at last. A and B's scholarly faction flourished through centuries by Family-like members.
It might be possible to apply non-physical blood shared dynasty (or special faction) if Adoption (or localised else) is applicated.
You mean....the real father of your kid is someone else while you still educated this kid?