A 63-year-old woman who imprisoned her three daughters-in-law, treating them as "slaves and dogs", has been jailed for seven years.
Naseebah Bibi would not let the women - also her nieces - leave the family home in Blackburn, Lancashire, without permission, Preston Crown Court heard.
One victim told police she had been forced to work on an industrial sewing machine day and night for 13 years.
The women had arranged marriages to Bibi's three sons, their first cousins.
Bibi, of Pringle Street, had denied falsely imprisoning Nagina Akhtar between 1993 and 2006, Tazeem Akhtar from 2001 to 2003 and Nisbah Akhtar between 2005 and 2007.
But she was convicted at the court on 14 April.
All three women were brought to the UK following arranged marriages to Bibi's three sons but were subjected to beatings and abuse from her after they arrived.
Judge Robert Brown, sentencing, said it was evident her victims had suffered physical and psychological trauma and had spent long periods "living in fear".
He ordered that Bibi serve three-and-a-half years in prison before being allowed out on licence, but would then face further monitoring.
He said: "It seems to be necessary in the public interest that you should be subject to a long period of supervision after you are released from prison so that your situation and that in your household can be monitored.
"At the same time, because of your poor health and in particular your mental health, I shall keep the custodial element of sentence as short as I can, consistent with my duty to punish you, to deter you from further offences and to protect the public."