Patrick J. Geary, Furta Sacra: Thefts of Relics in the Central Middle Ages
, rev. ed. (Princeton: Princeton University Press, 1990), p. 31, with note on p. 160:
The sources of relics did not even have to
be dead. The famous incident in the late eighth
century involving Aldebertus, the peripatetic Gaul who attracted a
great following and even gave away bits of his hair and nails
for the veneration of his followers, is proof that people were
eager to focus their attention on some physical reminder of
the persons whose power they sought.9
9. On Aldebertus see MGH Concil. II, Concilium Romanum 745,
pp. 39-43. He is discussed at length in the valuable article of Leo
Mikoletzky, "Sinn und Art der Heiligung im frühen Mittelalter,"
MIÖG, vol. 57 (1949) pp. 83-122.
II, Concilium Romanum
Ungulas suas et capillos dedit ad honorificandum et portandum cum reliquiis sancti Petri principis apostolorum.