The Masters worked liberally for their new lords, but it was as paid architects, not as serfs. As a proof we may cite an edict signed by King Luitprand on February 28, 713. It is entitled Memoratorio, and is published by Troya in his Codex Diplomaticus Longobardus.
It fixes the prices of every kind of building. Here are the titles of the seven clauses, referring to the payments of the Magistri Comacini: De Mercede Comacinorum—
CLVII. Capit. i. De Sala. "Si sala fecerit, etc."
CLVIII. Capit. ii. De Muro. "Si vero murum fecerit qui usque ad pedem unum sit grossus ... cum axes clauserit et opera gallica fecerit ... si arcum volserit, etc."
Capit. iii. De annonam Comacinorum.
CLIX. Capit. iv. De opera.
CLX. Similiter romanense si fecerit, sic repotet sicut gallica opera.
Capit. v. De Caminata.
CLXI. Capit. vi. De marmorariis.
CLXII. Si quis axes marmoreas fecerit ... et si columnas fecerit de pedes quaternos aut quinos ...