Analysis of information sources in references of the Wikipedia article "Pizza" in Croatian language version.
Tantummoduo persolvere debeatis omni anno salutes in dies natali domini sive vos sive vestris heredes in suprascripto episcopio tam nobis quam a nostris posteris successores duodecim pizze et una spatula de porco; et unum lumbulum; simul et in die sanctum pascha resurrectionis domini annualiter duodecim pizze et unum parium de pulli.
Giuseppe Nocca of the Istituto Alberghiero di Formia claims that the "codex diplomaticus cajtanus" of 997 CE contains the first ever written use of the word, in a list of food to be supplied annually as a tithe to the archbishops of Gaeta by the tenants of a mill on the nearby river Garigliano.