Note 442 — Chapter VIII · CONNEXION BETWEEN THE ROMAN LAND SYSTEM AND THE LATER MANORIAL SYSTEM.
Reading edition
There were probably servi on the 'ager publicus' as there were on the Frankish public lands, called 'servi fisci.' See Decretio Chlotharii regis, A.D. 511, 55S. Mon. Germ. Hist. Legum Sectio, ii. p. 6