Note 187 — Chapter V · THE ORIGIN OF PRIVATE CASTLES
Reading edition
When Fulk invaded Bretagne in or about 992, he collected an army “tam de suis quam conductitiis.” Richerius, edition Guadet. The editor remarks that this is perhaps the first example of the use of mercenaries since the time of the Romans (ii., 266). Spannagel, citing Peter Damian, says that mercenaries were already common at the end of the 10th century. Zur Geschichte des Deutschen Heerwesens, pp. 72, 73.