The presentation examines the meaning of the concept of sobornost (conciliarity), and the superimposed driving forces that have shaped its historical trajectory as the term has made its way from the religious domain to the secular one. It analyzes how Eurasianism, a socio-political movement that emerged in early 20th Russia and continued in émigré circles, appropriated the concepts of sobornost and soborny (conciliar) personality and examines the debate among the Eurasianists regarding the object to which the term soborny personality can be applied. It focuses on Lev Karsavin's (1882-1952) doctrine of the hierarchy of the soborny personalities, highlighting the fascist tendencies within it, and explores the context of these tendencies by examining Karsavin's connections both to ideologues of German fascism and to agents of the Soviet state security services (OGPU). It concludes by analyzing Georges Florovsky's critique of Eurasianist utilization of sobornost and considers the parallel conception of a hierarchy of soborny personalities developed within the Soviet Union by Valerian Muraviev.