List of anonymous masters
In art history, an anonymous master is an Old Master whose work is known, but whose name is lost. == Renaissance == Only in the Renaissance did individual artists in Western Europe acquire personalities known by their peers (some listed by Vasari in his Lives of the Artists), such as those known by: Their true name or their father's name: Filippino Lippi after his father Fra Filippo Lippi A chosen pseudonym, possibly linked to his birthplace or his father's trade: Giuliano da Sangallo worked on the gate of Saint Gall Antonio del Pollaiuolo, after his father, a chicken farmer (pollo in Italian) Jacopo del Sellaio, after his father, a saddler (sellier) The Della Robbias (after the Tuscan word robbia, dyers' madder, and his father, the dyer Luca della Robbia) Masuccio Segondo, student of Masuccio Primo etc.
Source: Wikipedia — List of anonymous masters (CC BY-SA 4.0)