J.C. Dahl begins his journey from Dresden to Italy.
Primary sources
Marie Lødrup Bang: Johan Christian Dahl – Life and Works, Vol. 1, Oslo 1987, p. 19 (Bang suggests 13.6.1820 – the day after Dahl’s wedding to Emilie Bloch).
Else Kai Sass: Thorvaldsens Portrætbuster, Copenhagen 1963-65, vol. II, p. 57-63 (Sass suggests 17.6.1820).