Правило 76 Василия Великого

The same statute applies to those who have intercourse with their daughter-in-law. (Ap. 19; Trul. 26, 54; Neokes. 2; Basil the Great. 23, 27, 67, 68, 75, 78, 79, 87; Timothy Alex. 11; Theophilus Alex. 5). Basil the Great also extended the order of twelve years of penance to persons who copulate with their daughters-in-law. You might be interested in: