Sdu
... that in 1806, the former Dutch State Printing House, Sdu, was one of the first Dutch companies to be called "royal"?
... that in 1806, the former Dutch State Printing House, <b id="mwBoA"><a href="./Sdu_(publishing_company)" id="mwBoE" rel="mw:WikiLink" title="Sdu (publishing company)">Sdu</a></b>, was one of the first Dutch companies to be called "royal"?