A series of degrees forms a line, which may be either direct or collateral.
A direct line is that constituted by the series of degrees among ascendants and descendants.
A collateral line is that constituted by the series of degrees among persons who are not ascendants and descendants, but who come from a common ancestor. (916a)
Consolidated by Alleba from the text of Republic Act No. 386 (Lawphil and the Supreme Court E-Library). Book I provisions on marriage, family relations and parental authority were repealed by the Family Code (Executive Order No. 209, 1987) and are shown for reference only. For information and research only, and not legal advice. For certified copies, refer to the Official Gazette or the issuing agency.