As artists and gallerists prepare their booths at warehouses across Milan for the Salone del Mobile design fair next week, one storefront on Via San Marco, in the Brera neighborhood, remains conspicuously empty. Locals know it as the former site of La Latteria di San Marco, Arturo and Maria Maggi’s restaurant, which shut down permanently in December.

Ever since it opened, in 1965, La Latteria was widely considered the city’s best restaurant. Patrons dined on simple foods—local vegetables, grilled Piedmontese beef, and their signature dish, spaghetti al limone (pasta with lemon zest). Seating consisted of eight small two-tops situated under an emergency-room glare. The restaurant was closed on weekends, and if you tried to call, more often than not you were greeted by an unintelligible Italian grumble followed by the click of the receiver.