Dhritarashtra

Dhritarashtra is the brother of Vidura. Source evidence (SB 1.13.29): Vidura is Dhritarashtra's younger brother: 'evam raja vidurenanujena' (SB 1.13.29) and 'bhratur jyeshthasya shreyaskrit' (SB 1.13.14), working the good of his elder brother. Evidence: EXPLICIT.

Dhritarashtra is the student of Vidura. Source evidence (SB 1.13.18): Vidura instructed Dhritarashtra to leave home: from 'rajan nirgamyatam shighram pashyedam bhayam agatam' (SB 1.13.18) to 'athodicim disham yatu' (SB 1.13.28); so awakened, he departed (SB 1.13.29). Direction: instructor -> instructed. Evidence: EXPLICIT.

Dhritarashtra is the father of Duryodhana. Source evidence (SB 3.1.6): Duryodhana is the son of Dhritarashtra: at SB 3.1.6 the king is described as 'sva-sutAn asAdhUn puShNan' — nurturing his own wicked sons — and at 3.1.16 Vidura is struck 'bhrAtuH puraH', before his brother, by the son who insults him.

Dhritarashtra is the husband of Gandhari. Source evidence (SB 1.8.3): Gandhari is the wife of Dhritarashtra; SB 1.8.3 seats them together and calls her 'putra-shokarta', grieving for her sons, the Kauravas. Evidence: STRONG_CONTEXT.