Referenced In

The Travels of Marco Polo
by Marco Polo, da Pisa Rusticiano

"XXII. —Description of Rosia and its People. Province of Lac 486 Notes.—1. Old Accounts of Russia. Russian Silver and Rubles. 2. Lac, or Wallachia. 3. Oroech, Norway (?) or the Waraeg Country (?)"

The Travels of Marco Polo
by Marco Polo, da Pisa Rusticiano

"You see in that region that I have been speaking of, there is a province called Lac, which is conterminous with Rosia, and has a king of its own."

The Travels of Marco Polo
by Marco Polo, da Pisa Rusticiano

"Lac (Wallachia), Lacz, i. 54n, ii. 487, 489n, 490, 491n"