Adolf Dietrich
... that Adolf Dietrich, one of Switzerland's leading painters of the 20th century, had no formal training and worked for most of his life as an untrained labourer?
... that <b id="mwFjI"><a href="./Adolf_Dietrich" id="mwFjM" rel="mw:WikiLink" title="Adolf Dietrich">Adolf Dietrich</a></b>, one of <a href="./Switzerland" id="mwFjQ" rel="mw:WikiLink" title="Switzerland">Switzerland</a>'s leading painters of the 20th century, had no formal training and worked for most of his life as an untrained labourer?