From A Wiki of Ice and Fire
Mother's was a brothel on the lower end of the Street of Silk in King's Landing during the reign of King Aegon III Targaryen. The prostitutes employed there are referred to as "Mother's daughters".
Former Grand Maester Orwyle, who had escaped his imprisonment, hid and worked in the brothel during the Regency of Aegon III under the alias of "Old Wyl".
- ↑ 1.0 1.1 Fire & Blood, Under the Regents - The Hooded Hand.