 Emperor Augustus’ "Leges Juliae" gave the first legal recognition of concubinage, defining it as cohabitation without marital status.Concubinage came to define many relationships and marriages considered unsuitable under Roman law, such a senator's desire to marry a freedwoman, or his cohabitation with a former prostitute.While a man could live in concubinage with any woman of his choice rather than marrying her, he was compelled to give notice to authorities.