Complex sentence: Tzachristos argues that Christian names were overwhelmingly affected while on the other hand, the use of several Muslim names was allowed in spite their religious connotations, although French anthropologist Gilles de Rapper observes the opposite, that religious names survived better among Christians than among Muslims.
Split into simpler sentences: Tzachristos argues that Christian names were overwhelmingly affected while on the other hand, the use of several Muslim names was allowed in spite their religious connotations. However, French anthropologist Gilles de Rapper states that according to some observations the religious names survived better among Christians than among Muslims.