Adhipati
The lord — anterior fontanelle (sandhi-marma)
Adhipati — 'the overlord' — at the crown of the head, corresponding to the anterior fontanelle / coronal-sagittal suture region. Classified by Suśruta as a sandhi-marma (joint-class) and as sadyaḥ-prāṇa-hara — instantly fatal if struck. In the topography of the head this is the highest of the head marmas and presides over the others, hence its name.
Point 1 of 13 in Marma Points (Suśruta-saṃhitā)
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Suśruta-saṃhitā, Śārīrasthāna 6 vv. 26–28 (head marmas) (primary_canonical)
Śārīrasthāna 6.26–28 (Yadavji Trikamji Acharya ed., Chaukhamba, repr. 1992) places Adhipati among the head marmas and classifies it as a sandhi-marma with a sadyaḥ-prāṇa-hara injury prognosis.
Bhishagratna, English trans. (secondary_translation)