On Trinity Sunday, the 11th of June 1514, her niece, Isabel of Austria, was married by proxy to Christian II., King of Denmark, who had succeeded to his father's throne the previous year. In a long letter to Maximilian Margaret gives an interesting account of the wedding:-- 'BRUSSELS, _the 12th of June_. 'Monseigneur,--... After the arrival of the Danish ambassadors on Wednesday last they had their public audience on Thursday, and visited Monsieur and Mesdames and delivered their king's messages with many good words; they then withdrew until Friday, when I sent the Chancellor of Brabant, the President of Burgundy, and other deputies to call upon them.... The next day, which was Saturday, they expressed a great desire that the marriage should be solemnised on the following day, which was Trinity Sunday, on which day the king their master held the festival of his anointing and coronation. But, Monseigneur, it was very difficult to arrange such a solemn function in so short a time, for it could not be as honourably held as I should have wished, but, anxious to please them and gratify their desires, I agreed that the said ceremony should be held on Trinity Sunday, which was yesterday, and I did my best to have everything arranged and put in order. The parties assembled on the said day between ten and eleven o'clock, with as much state and honour on our side as was possible, owing to the short notice, in front of the great hall of this house, where Monsieur de Cambray gave the promises and performed the espousals by word of mouth, as was right between the King of Denmark... and Madame Isabel, my niece, whom it certainly did one good to look at. The said promises given, they went to hear high mass in this hall; and the ambassadors were seated according to their rank, he of Spain beside Monseigneur, to the great content of all, but those of England were not there because "on ne les scavoit accorder." And when evening came, supper was served and every one sat down in order, and after supper there were dances and tourneys until very late, when they retired to put the bride to bed... as is the custom amongst great princes. Thus all was very solemnly and duly accomplished, to the great delight of the said ambassadors, who thanked me very much at their departure; as they had fulfilled their mission they were anxious to hasten their return, and I believe they will guard your honour and that of this house as much as possible....'