17 Not the least effective means of your enjoying this combination of good things, as your famous forefathers did, is to allow your feeling of piety towards the Roman Church to be inspired by their example, as under new auspices. The most honorable crown of Stephan will be borne on a set day through the capital city in an unusually solemn procession; this will be in the course of the public rejoicings for the dedication of the House of Assembly. Indeed, nothing is more closely connected with the glory of your nation and your kings, nothing so suitable to the right organization of civil affairs, than that sacred symbol of royal power. But We anticipate that a twofold permanent result will arise without difficulty from this occasion: first that among the nobility and the common people, obedient and faithful allegiance to the august House of Hapsburg will be strengthened. That House has always worn this same crown, which was conferred on it by your ancestors of their own accord. The second anticipated result is that the consequent recollection of the very close relations of your ancestors with the Chair of Peter, which are plainly approved and consecrated by this papal gift, may add firmness and strength to these same bonds.
Source: Insignes (Vatican.va)