Prohibited degrees of relationship

Marriage cannot be contracted with a lineal ancestor or descendant, nor the lineal ancestor or descendant of either parent, nor the child of a grandparent, nor the lineal descendants of husband or wife, as the case may be, nor the husband or wife of a parent or lineal descendant.

Code 1858, § 2436 (deriv. Acts 1829, ch. 23, § 18); Shan., § 4185; Code 1932, § 8408; T.C.A. (orig. ed.), § 36-401.