»The Role of the Notary in Artficial Insemination with Donor Sperm«: Medical advances and social change have for years led to calls for a reform of the German law of descent. The instrument of notarisation of descent-relevant declarations has so far been neglected within the numerous reform proposals. The work shows that the involvement of notaries in agreements to have children on the occasion of a sperm donation can contribute to more legal certainty under current law and would offer great added value within the framework of a reformed law of descent.