This marriage had political background, because Hermann had hoped to be elected King of the Germans earlier in 1246, but had lost to Margaret's brother William II.
In an attempt to strengthen his influence in Germany, William had arranged a marriage between his sister and a German count.
Margaret of Henneberg and her husband lived in Coburg, although the couple also owned a residence in Loosduinen, where they frequently stayed.
The mother of twins now has a name, Catherine, and is described as a personal enemy of Margaret, who is described as the wife of Count John of Holland.
In his version of the story, Herman of Henneberg was present at the birth and the baptism and he invited many nobles to act as godparents to his children.
Another writer relied on Jobus Fincelius when he gives the year of the miraculous birth as 1313 and stated Margaret was Irish.
The copy of the Chronica that is preserved in Dresden has handwritten additional notes by the historian Nathaniel Carolus.
In the late 16th century, the theme was taken up by a Spanish song writer, who sang about the fate of madama Margarita and imputed her 360 children survived and their silver baptismal vessel was later exhibited in a church.
The legend is also mentioned in Edward Grimeston's General History of the Netherlands of 1609, in Thomas Coryat's Crudities of 1611 and in John Stow's Annales.
The theme also appears in William Strode's The Floating Island of 1639, in a poem by Robert Waring of 1651, in the works of Abraham Cowley, in Jacob Westerbaen's Ockenburgh of 1654 and in numerous other publications.
Wilhelmus of Heda confirmed, like Spangenberg had earlier, that there was a monument for the dead children in the church, and also that the vessel in which they had been baptized, was still on display there.
Incidentally, one result of the spread of the legend was that a castle in Poederoijen, which had 365 windows, was named arx puerorum.
Battista Fregoso, for example, asserted in 1565 that they were kept in a glass jar and that Emperor Charles V had picked up the bottle for closer examination.
When Jean François Regnard visited Copenhagen in 1681, he was shown one of Margaret's children, which was kept in the curiosa cabinet in King Frederick III's art collection.
An anonymous book entitled Description of Holland of 1741 pointed out that the fetus in the jar looked like the result of a miscarriage or an abortion.
The thumb-sized baby was transferred to the Natural History Museum in Copenhagen when the royal art collection was dissolved on 26 December 1826 and has since disappeared without a trace.