The girls, including a baby now aged four months, were taken in after Leeds social workers stepped in to help.

Family Court Judge Sarah Lynch made a series of rulings about the girls and would not not identify any names or the family involved, The Sun reported.

The judge said social services staff at the local City Council had asked for rulings.

Her final ruling in November focused on the youngest sister, whose birth was said to have only had been registered by her surname.

Social workers said they gave the baby a name for "day-to-day" use and claimed there was evidence the child was at risk of "sexual and emotional" harm at home.