To understand the growth of Western constitutional thought, we need to
consider both ecclesiology and political theory, ideas about the Church
as well as ideas about the state. In this book Professor Tierney traces
the interplay between ecclesiastical and secular theories of government
from the twelfth century to the seventeenth. He shows how ideas revived
from the ancient past - Roman law, Aristotelian political philosophy,
teachings of Church fathers - interacted with the realities of medieval
society to produce distinctively new doctrines of constitutional
government in Church and state. The study moves from the Roman and canon
lawyers of the twelfth century to various thirteenth-century theories of
consent; later sections consider fifteenth-century conciliarism and
aspects of seventeenth-century constitutional thought. Fresh approaches
are suggested to the work of several figures of central importance in
the history of Western political theory. Among the authors considered
are Thomas Aquinas, Marsilius of Padua, Jean Gerson, Nicholas of Cues
and Althusius, along with many lesser-known authors who contributed
significantly to the growth of the Western constitutional tradition.