During the 12th and 13th centuries, the English began to consider themselves superior to the Welsh, Scots and Bretons. The English perceived themselves as civilised, economically prosperous and properly Christian, while the Celtic fringe was considered lazy, barbarous and backward. Following the invasion of Ireland in the late 12th century, similar feelings were expressed about the Irish, with the distinctions clarified and reinforced in 14th-century English legislation. The English also felt strongly about the foreign traders who lived in the special enclaves in London in the Late Middle Ages; the position of the Jews is described below, but Italian and Baltic traders were also regarded as aliens and were frequently the targets of violence during economic downturns. Even within England, different identities abounded, each with their own sense of status and importance. Regional identities could be important – men and women from Yorkshire, for example, had a clear identity within English society, and professional groups with a distinct identity, such as lawyers, engaged in open fighting with others in cities such as London.