To quote from the blog post (which I'm not linking to): "It is possible that Edward III was in fact the son of Roger Mortimer, not Edward II. In even saying this I am in direct conflict with Kathryn Warner who carries out a non stop campaign to defend Edward II’s reputation. Simplistic histories have Mortimer in Ireland from 1308 until 1318. However it is recorded elsewhere that Mortimer travelled continuously alternating between his estates in Ireland, his estates in the Welsh marches and attendances at court."
Ian Mortimer's The Greatest Traitor: The Life of Sir Roger Mortimer, Ruler of England 1327 to 1330 (Pimlico, 2003) gives Roger's itinerary as fully as it can be determined, and frankly I'll take Ian Mortimer and his research any day over a stranger on the internet who wants to think that Roger could possibly have fathered Edward III and Isabella's other children. Edward III, born on 13 November 1312, must have been conceived around late February 1312. Queen Isabella had joined her husband Edward II in York on about 20/21 February, and the king and queen remained in the city together until early April. There is no doubt whatsoever that the royal couple were together for a few weeks at the time when Edward III must have been conceived, and as I've pointed out before, Edward and Isabella conceived their son during Lent, when intercourse was forbidden. (Tsk!) As for Roger Mortimer, we know that he was in Dublin 270 miles from York in April and May 1312 (Greatest Traitor, pp. 49-50, 305). No, we can't conclusively 100% prove that he wasn't in or near York in late February that year having sex with Isabella. But why on earth would he have been? How could he possibly have slept with the sixteen-year-old queen while she was with her husband without either Edward or Isabella's household of 180 people noticing? The queen had less privacy than anyone else in the country, yet we're supposed to imagine that she could have had sex with one of her husband's leading barons without anyone noticing? Let me reiterate here the absolutely key point that no-one at all until the 1980s ever suggested that anyone but Edward II was the father of Edward III and Isabella's other children. So why are people making up these weird fantasies?
The blog post again: "Kathryn is not simplistic she has the records which place Isabelle and Edward together in York from the 22nd February 1312 exactly full term before Edward III’s birth on 13 November." Wow, thanks!
"These dates apparently make it impossible for Mortimer to be the father of Edward III. However the relationship between Roger and Isabelle was known in France at the time of the Tour Nestlé affair in 1313."
Firstly, it's the Tour de Nesle, not 'Nestlé', which is the name of a modern multinational food and drink company. Secondly, the Tour de Nesle affair was the revelation in 1314 (not 1313) that two of Isabella's sisters-in-law, Marguerite and Blanche of Burgundy, were committing adultery with the d'Aulnay brothers in Paris, for which the men were executed and the women imprisoned. Although it may have been Isabella who discovered these adulterous relationships (though this is not certain), the whole business has nothing whatsoever to do with Isabella's much later relationship with Roger Mortimer, which began in late 1325 or early 1326. The blog writer here appears to be confusing and conflating three different things: 1) the long visit of Edward II and Isabella to France in 1313 (and see also here); 2) the revelation of the Tour de Nesle affair in 1314, while Isabella was again visiting Paris, without her husband this time; and 3) the relationship of Isabella and Roger Mortimer which began in Paris in late 1325/early 1326.
"There is also the question of what was happening in the period leading up to the 22nd of february. Isabella took the whole of this month to travel north from london and then the last four days to travel the last four days from Doncaster to York, a distance of less than thirty miles. She could have conceived on any of these days. The person who gave her safe conduct in Tynemouth was Thomas of Lancaster. His major stronghold was Pontefract Castle near Wakefield. The deviation from doncaster would have taken an extra eighteen miles. Just suppose that Isabelle made the deviation to negotiate her own safety. Just suppose that Mortimer already unhappy with aspects of Edward II’s rule attended the meeting seeking her support against Gavescon [sic]."
Just suppose that we focus on things that we actually know, rather than piling fantasy on fantasy and speculation on speculation. We have no evidence that Roger Mortimer was in England in February 1312. We have no evidence that he was already unhappy with Edward II's rule, or acting against the king and Piers Gaveston, and in fact his biographer Ian Mortimer makes it quite clear that Roger supported Edward and Piers, whom he knew well (his wardship had been granted to Piers by Edward I in 1304). We have no evidence that Roger had any kind of relationship with Isabella, beyond the usual courtly one between the queen and a magnate, before the mid-1320s. We have no evidence that Isabella met or went anywhere near her uncle Thomas of Lancaster at this time. We have no evidence that Isabella 'deviated' anywhere on her journey north in February 1312. Yes, it was a very slow journey. Travel in the thirteenth/fourteenth centuries often was, especially in winter. In August 1289, at the height of summer, it took Edward I's children, including the five-year-old Edward of Caernarfon, two weeks to travel the 100 miles from Langley to Dover to greet the king and queen on their return to England. Travelling could be painfully slow. Perhaps Isabella was ill and couldn't travel far each day, or a lot of her household were ill, or perhaps there was really bad weather and they were unable to go very far each day in the driving rain or howling snowstorm, or the roads were horribly muddy or icy and nearly impassable. There are lots of possible reasons for the slowness; we don't have to invent stories about the queen secretly meeting and having sex with Roger Mortimer.
I genuinely don't understand why people do this, why they insult Edward II and Isabella by painting them as a cuckold and an adulteress willing to foist a non-royal child onto the English throne. Do they think it's romantic and sweet? I suppose if you really wanted to, you could construct similar elaborate and implausible fantasies about the paternity of any other king. Edward II himself was conceived in Wales in July or August 1283, and if you tried hard enough you could probably come up with some scenario that has Eleanor of Castile travelling somewhere and secretly sleeping with, I dunno, Othon de Grandisson, who is then really the father of her youngest child. But why would you? It's daft. So is this silly scenario about Isabella and Roger Mortimer. Yes, she did have a relationship with him, many years later, long after all her children were born. This does not in any way prove that she was already sleeping with him, or willing to do so, as early as 1312. By late 1325, Edward II and Isabella's relationship had broken down and Isabella needed an ally to act with her against the Despensers and restore herself to her rightful position and her lands. This cannot in any way be taken to mean that in 1312, she would have been willing to sleep with Roger Mortimer or anyone else.
"This is all supposition and then again there is the fact that in the period leading up to 1322 she had not one but four children. Could Mortimer have fathered all four children?"
No. He couldn't. Edward II and Isabella of France's younger three children were conceived in or around late November 1315, September 1317 and October 1320. Roger was then in Kells (6 December 1315), Drogheda and Dublin (September 1317) and Dublin/on his way to court back in England in October 1320 (Greatest Traitor, pp. 69-70, 87, 100-01, 305-09). I have a great deal of respect and admiration for Roger Mortimer, but I'm pretty sure that even he wasn't capable of impregnating a woman who was in another country at the time, 'unequivocally heterosexual' though he may well have been. And again, we have the fact that Isabella was with her husband when all her children were conceived.
"after edwardii’s death isabelle plans to marry mortimer and to have a legitimate child whho could well force through a claim to the french throne and thereby limiting edward III’s own prospects"
I'd love to know how Isabella could have planned to marry a man who was already married. Good one.
"if edward III is the son of mortimer then he is noble but undeniably illegitimate and therefore entitled to nothing"
"if edward III is the son of mortimer then he is noble but undeniably illegitimate and therefore entitled to nothing"
Edward III was the son of Edward II. I'm as certain of this as I am of anything. If there'd been even the slightest iota of doubt in anyone's mind, why would they have been willing to make him king in 1327? Why did the French never accuse him of illegitimacy? It would have been an obvious thing to do, to damage his reputation and harm his chances of claiming the French throne, if he didn't even have a right to the English one. I am so bored with people claiming that English kings were not really the sons of their fathers and only they, centuries later, have been clever enough to discover The Real Truth!!! Bollocks. Edward I was the son of Henry III, Edward III was the son of Edward II. Stop fantasising and stop insulting their memory.