This biography of Clare of Assisi travels the spiritual journey of the holy without losing sight of the background of medieval society in which he lived, the era of emerging cities, the cathedrals and the emergence of a new secular spirituality. To retrace the path of his life, the authors into the community of Clare, following in his footsteps and light up their struggle to maintain, against all odds, the originality of evangelical life. This book is born of many individual meetings between authors and the sister of Assisi and many dialogues between them. Ancilla's vision Röttger, Poor Clare Abbess of San Damiano, differs clearly from the experience of Martina Kreidler-Kos, a young theologian married, and Niklaus Kuster, monk historian. In writing this biography together invite us to discover the life of Clara with open horizons.