"The thirteenth century likewise witnessed the creation of convents and religious orders of women that provided a haven and a degree of security and chaste companionship for reformed daughters of joy. The most successful of thee religious institutes, the Order of St. Mary Magdalene (whose members were informally known as the White Ladies, established houses in many major European cities and in a surprising number of minor one as well. Such institutions in effect constituted a social security system of sorts for prostitutes who wished to retire from their occupation but required both social and economic support in order to do so."