O.C.G.A. § 19-3-3

# 19-3-3. Degrees of relationship within which intermarriage prohibited; penalty; effect of prohibited marriage. (a) Any person who marries a person to whom he knows he is related, either by blood or by marriage, as follows: (1) Father and daughter or stepdaughter; (2) Mother and son or stepson; (3) Brother and sister of the whole blood or the half blood; (4) Grandparent and grandchild; (5) Aunt and nephew; or (6) Uncle and niece shall be punished by imprisonment for not less than one nor more than three years. (b) Marriages declared to be unlawful under subsection (a) of this Code section shall be void from their inception. ## History Cobb's 1851 Digest, p. 814.; Code 1863, §§ 1655, 4418; Code 1868, §§ 1699, 4459; Code 1873, §§ 1700, 4533; Code 1882, §§ 1700, 4533; Ga. L. 1886, p. 30, § 1; Civil Code 1895, § 2413; Penal Code 1895, § 380; Civil Code 1910, § 2932; Penal Code 1910, § 371; Ga. L. 1916, p. 51, § 2; Code 1933, §§ 26-5702, 53-105; Code 1933, § 26-9905, enacted by Ga. L. 1968, p. 1249, § 1.