It was not uncommon in Brazil for slaves to own slaves. Slaves as masters of slaves existed in many slave societies and societies with slaves, but considering modern, chattel slavery in the Americas, Brazil seems to have been a special case where this phenomenon thrived, especially in nineteenth-century urban Bahia. The investigation is based on more than five hundred cases of enslaved slaveowners registered in ecclesiastical and manumission records in the provincial capital city of Salvador. The paper discusses the positive legal basis and common law rights that made possible this peculiar form of slave ownership. The paper relates slave ownership by slaves with the direction and volume of the slave trade, the specific contours of urban slavery, access by slaves to slave trade networks, and slave/master relations. It also discusses the web of convivial relations that involved the slaves of slaves, focusing on the ethnic and gender profiles of the enslaved master and their slaves.