According to a contemporary Polish chronicler, she broke the cross off the Crown of Saint Stephen’s peak for her son, John Sigismund Zápolya.
[1][3] The Polish king treated the crown of Hungary as a family keepsake, and kept it in a private vault in the Tykocin Castle.
[2] The Hungarian Crown was made in the form of rims topped with a globe and a cross at their intersection.
[3] It was decorated with enamel plaques, filigree work, pendants and precious stones including four large sapphires and rubies.
[3] In the 18th century the crown was depicted in the portrait of Louis I of Hungary by Marcello Bacciarelli, painted to embellish the Marble Room at the Royal Castle in Warsaw.