There are many strange phenomena associated with Donald Trump and his immediate family, who spent many years in business and reality TV before acceding to the heart of government. The one that I will discuss today is the fandom that has developed in the last few years around his youngest son.

Donald Junior (1977) and Eric have been both executives in The Trump Organization and judges on The Apprentice. They are active in their father’s election campaigns and engaged in international business dealings. Ivanka (1981) was a board member of the Donald J. Trump Foundation now serving as Advisor to the President. She participated alongside her father at international conferences and diplomatic meetings. Her husband Jared (1981) was appointed Senior Advisor and Director of the Office of American Innovation, among other things. 2006-born Barron, of course, is too young to be involved in such matters, and his mother has made efforts to maintain for him an appropriate level of distance from public scrutiny. He is rarely heard to speak, and reportedly is not allowed a social media presence, so little can be known about him outside of what few snippets are uttered to the press by his parents and what can be spotted when he is brought to public events.

His relative anonymity gives Barron a fascinating quality – he becomes a sort of blank state onto which others can project their own imagination. Above all, his fans feel a pity for him having to grow up in the shadow of his dysfunctional elders, and a hope that he can be “saved” from their fates as an adult. As is to be expected, there are rumours of autism, with some even suggesting that this could have influenced his father’s credulity to anti-vaccination ideas. It is at least faintly plausible given that the president was fifty-nine years old when he conceived his last son (advanced paternal age being a known risk factor), but I would be more inclined to believe it were this not a trendy claim to make about seemingly everyone in the public eye nowadays. Of course, the common perceptions of those on the spectrum (some true, some false) often overlap with those of the people in these kinds of online communities, which could go some way to explaining why they feel a natural affinity with Barron – or at any rate more of an affinity than they feel for the rest of the entourage.

Prior to Barron in 2017, the last minor son of an incumbent POTUS was John F. Kennedy Junior, who was frequently under the spotlight during his years at the White House and is immortalised in the photograph of him saluting his father’s coffin. Generally speaking most presidents’ children in the last century or so reached their majority some time before their fathers’ election, so a dependent First Son is a rarity, which of course adds to the excitement whenever it does occur.

As with much about the Trump family, certain precedents can be found in royal dynasties of centuries ago: Edward of Middleham, lone son of Richard III & Anne Neville, lived so brief and so ill-recorded a life that there is even an uncertainty of four years as to when he was born, and of about forty miles as to where he was buried. Had he not died so young then the course of British history would have been very different – the House of York might have been secured on the throne for many more decades and the Tudor coup of 1485 averted. He is important in that sense, and obviously would have been well-documented had he survived to become king, but as it is he serves as little more than a placeholder. The only contemporary likeness is a crude cartoon on the Rous Roll, and the only personal characteristic recorded was his sickliness. Two other namesake Princes of Wales fare little better: He of Lancaster was active military (and indeed was England’s only heir apparent to die in battle) so we can at least record his movements, but what we know of his personality is limited to a few sensationalist excerpts and is almost certainly exaggerated for propaganda purposes. He of Warwick survived into adulthood, but spent most of his life hidden away in the Tower of London. Again he was important as a placeholder, for Yorkist forces rallied around him as a potential replacement for Henry VII, but almost nothing is known about the man himself except that he had a mental illness, and even that is based on a one-off line written years after his death. He of the Sanctuary fares a little better in this regard, perhaps because he actually made it to the throne if (of only for eleven weeks) and spent nearly all of his life before that as heir apparent. Details were therefore recorded of his upbringing and his education, and we even have a few snippets describing his character. Even so, he is more remembered for his death than for his life. His brother Richard is a case in point – except for his child marriages and peerage there is very little in his biography that would not also apply to Edward V, and it is suggested that so many more pretenders posed as Richard than Edward precisely because the younger son was less well-documented and so granted wider latitude for invention.

For a modern example, one possible candidate is Prince John, youngest son of George V & Mary of Teck. Like Edward of Middleham his health was poor and, like Barron Trump, many suspect autism. In 1916 he was removed from public life and sent to live at Wood Farm on the Sandringham Estate (where the Duke of Edinburgh has lived since retiring in 2017) due to his increasingly-frequent epileptic seizures. He died in 1919. He has been the subject of some intrigue since his death, styled as The Lost Prince or The Windsors’ Tragic Secret. Unlike the earlier examples there was plenty of contemporary documentation of his life, but it was made public for a long time after his death. The void encouraged fiction, and some writers liked to exaggerate John’s seclusion so as to paint the family in a negative light, but later revelations indicate that he was treated as well as could be expected for the time, especially given that the First World War was in full swing.

If I had to single out one example of a historical antecedent for Barron my choice would fall upon Gioffre Borgia, youngest son (if he was his son at all) of Pope Alexander VI, who lacked his relatives’ political ambition. He is generally regarded as the innocent one in a dynasty renowned for its depravity. This is best illustrated in the Horrible Histories song about the family from 2012, in which Gioffre sits in mute confusion while his father and siblings go on about their various crimes, scandals and machinations. Gioffre lived into his thirties, playing a modest role in the Second Italian War and ruling indirectly over the city principality of Squillace.

Barron, at this point, has already outlived most of the people to whom I have referred, and his encounter with SARS-CoV-2 appears not to have caused any harm. Nor, for that matter, has there been any sign of an assassination attempt. Only time will tell which path he ultimately takes, and whether his fans’ hopes will be fulfilled or betrayed. All we can say for certain at this point is that he’ll be extremely tall, which might be an omen for the Cambridge and Sussex children, too.