Iron Crown of Lombardy
The portrait was possibly executed when King Sigismund travelled to Mantua to vest Gianfrancesco Gonzaga with the title of marquess. In October 1431 the King had travelled to Italy to sojourn at the court of Filippo Maria Visconti in Milan, where he received the Iron Crown of Lombardy. He later also stayed in Lucca and Siena, and would proceed to Rome to be crowned Holy Roman Emperor by Pope Eugene IV on 31 May 1433.