On the Indonesian island of Bali, "sati" (known as "masatya") was practised by the aristocracy as late as 1903, until the Dutch colonial masters pushed for its termination, forcing the local Balinese princes to sign treaties containing the prohibition of "sati" as one of the clauses. Early Dutch observers of the Balinese custom in the 17th century said that only widows of royal blood were allowed to be burned alive. Concubines or others of inferior blood lines who consented or wanted to die with their princely husband had to be stabbed to death before being burned.