Plaine avec mare et arbres

Plaine avec mare et arbres, painted in 1837 and noted as having been in the collection of the Führermuseum — the museum planned by Adolf Hitler for Linz, Austria, and never completed — carries the shadow of the extensive Nazi art looting that swept European collections between 1933 and 1945. Many works that passed through this collection or were designated for it were ultimately restituted after the war, their provenance histories complex and sometimes contested. The painting itself, as a Rousseau landscape from 1837, belongs to his early Barbizon period: the year he first settled permanently in the village after years of painting across France. A plain with a pool and trees was an entirely characteristic subject — Rousseau's Barbizon landscapes often centered on such still water reflections, which allowed him to double the sky and canopy in horizontal mirror effects. The early date places this work in the period before Rousseau's mature style was fully consolidated.

The 1837 canvas shows Rousseau's early Barbizon technique: careful observation of tree forms and water reflection, with the pool providing a compositional counterpoint to the sky. Paint application is relatively detailed in the foliage, with broader handling in the water and sky passages.