How to read it
Read the Sun (father) and Moon (mother) as placed in the D12, then the 4th house of the D12 (mother and ancestry) and 9th house (father and dharma).
Vedic · Divisional chart
D12 Dwadasamsa
Parents Chart
Each sign split in twelve — the chart of parents, ancestry, and inherited disposition.
Tier
specialised
Domain
parents, ancestry, inheritance
Subdivision
12× per sign
How it’s computed
Each 30° sign splits into twelve 2°30' parts, mapping at 30° intervals starting from the original sign.What the Dwadasamsa reads
The Dwadasamsa (D12) divides each 30° sign into twelve 2°30' parts, mapping each part to a sign starting from the original sign. Classical sources read the D12 as the chart of parents and ancestry — the inherited material the person comes into the world carrying.
Practitioners consult the D12 when reading questions about the relationship with parents (alive or deceased), the lineage's effect on the present chart, or whether ancestral patterns (Pitru Dosha and similar configurations) are active. The Sun (father), Moon (mother), and 4th and 9th houses of the D12 together describe the inheritance.
The Dwadasamsa is rarely read in isolation. It complements the D9 (long-arc verdict) and the D1 (broad strokes) in a complete reading; it specialises in the question of what the chart inherited from prior generations versus what it generates fresh.
Pitfalls
Don't read the D12 as a verdict on parents. It describes the structural inheritance; lived relationships involve free will, circumstance, and time. Many people repair or rewrite their inherited material.
parentsancestryinheritancelineagespecialised
Read your own
Your Vedic chart already includes the Dwadasamsa.
The free Vedic birth chart computes D1 + D9 by default; the paid chambers expand to the full Shodashavarga when the reading calls for it. Pull up your chart and see how the Dwadasamsa maps your parents, ancestry, inheritance domain.
Calculate your Vedic chart — free →Common questions
About the Dwadasamsa (D12) chart
What is the Dwadasamsa chart (D12)?
Each sign split in twelve — the chart of parents, ancestry, and inherited disposition. The Dwadasamsa divides each 30° sign into 12 parts and re-maps the planets accordingly to zoom in on the domain of parents, ancestry, inheritance.
How is the Dwadasamsa chart computed?
Each 30° sign splits into twelve 2°30' parts, mapping at 30° intervals starting from the original sign.
How do I read the Dwadasamsa chart?
Read the Sun (father) and Moon (mother) as placed in the D12, then the 4th house of the D12 (mother and ancestry) and 9th house (father and dharma).
What are the common pitfalls when reading Dwadasamsa?
Don't read the D12 as a verdict on parents. It describes the structural inheritance; lived relationships involve free will, circumstance, and time. Many people repair or rewrite their inherited material.