Re: Sibling relationships in your culture.
I don’t know if paternal or maternal. I know it’s not allowed by law but there are some exceptions people use. Maybe these are maternal examples.
Hindus - supportive of cousin marriage? (sorry for forum link but this is what i found..when i searched cousin marriages. I do not know the specifics of the epics).
n the Mahabharata, one of the two great Hindu Epics, Arjuna took as his fourth wife his first and cross cousin Subhadra, the sister of Krishna. Arjuna had gone into exile alone after having disturbed Yudhisthira and Draupadi in their private quarters. It was during the last part of his exile, while staying at the Dvaraka residence of his cousins, that he fell in love with Subhadra. While eating at the home of Balaramaji, Arjuna was struck with Subhadra’s beauty and decided he would obtain her as his wife. Subhadra and Arjuna’s son was the tragic hero Abhimanyu. According to Andhra Pradesh oral tradition, Abhimanyu himself married his first cross-cousin Sasirekha, the daughter of Subhadra’s brother Balarama ..
It’s strange in India. Despite above stories if someone is desperate they cannot marry their cousin but they can convert and then marry..even when Christian countries like UK, US don’t allow it either.
People who are not getting support to have their marriages recognised by law are deciding to become live in couples. Let us live in: Man who married first cousin moves court