Columbia subject headings:
Harvard subject headings:
Datini, Francesco, 1335-1410--Correspondence.
Datini, Francesco, 1335-1410.
Florence (Italy)--Commerce--History--Sources.
Italy--Commerce--History--Sources.
Mazzei, Lapo, 1350-1410--Correspondence.
Notaries--Italy--Florence--Correspondence.
Princeton subject headings:
Datini, Francesco, 1335-1410.
Florence (Italy)--Commerce--History--Sources.
Italy--Commerce--History--Sources.
Notaries--Italy--Correspondence.