Conrad V or Conradin, (1252-1268) was King of Sicily, King of Jerusalem, and Duke of Swabia.

The throne of Sicily was usurped by his uncle Manfred in 1258, who in turn was overthrown and usurped by Charles, Count of Anjou & Provence in 1266. Trying to recover his kingdom, Conradin was defeated, imprisoned, and beheaded in the market place of Naples on Oct. 29, 1268.

So what alleged crimes was Conradin sentenced in a mock trial and killed for?

It is easy to find statements that Conradin was tried and convicted of treason:

He was tried as a traitor, and on 29 October 1268 he and Frederick were beheaded.

https://military-history.fandom.com/wiki/Conradin#Political_and_military_career

Arrested and delivered to Charles, he was tried before Charles’s jury at Naples, which condemned him to death for treason to the church and to the king. He was beheaded in the public marketplace. Conradin

https://www.britannica.com/biography/Conradin

But I have found other statements on the internet:

Most violators of international law have been tried in domestic forums. Rarely was a tribunal created to try offenses against humankind. One notable early example occurred in Naples when Conradin von Hohenstafen, Duke of Suabia, was tried and later executed for initiating an unjust war on October 29, 1268.

https://repository.law.umich.edu/cgi/viewcontent.cgi?article=1351&context=mjil

Possibly the first trial for waging aggressive war is that of the Sicilian king Conradin in 1268.4

https://en.wikipedia.org/wiki/War_of_aggression

There are some German language books about Conradin which probably describe his trial:

K. Hampe, Geschichte Konradins von Hohenstaufen (Berlin, 1893)

F. W. Schirrmacher, Die letzten Hohenstaufen (Göttingen, 1871) E. Miller, Konradin von Hohenstaufen (Berlin, 1897)

But I don't read German or Ilalian or have access to large libraries which might have those books.

There is also a book which seems to be about Conradin's trial:

del Giudice, Il Giudizio e la condanna di Corradino (Naples, 1876)

So I would like to know what Conradin was specifically charged with.

Conrad V or Conradin, (1252-1268) was King of Sicily, King of Jerusalem, and Duke of Swabia.

The throne of Sicily was usurped by his uncle Manfred in 1258, who in turn was overthrown and usurped by Charles, Count of Anjou & Provence in 1266. Trying to recover his kingdom, Conradin was defeated, imprisoned, and beheaded in the market place of Naples on Oct. 29, 1268.

So what alleged crimes was Conradin sentenced in a mock trial and killed for?

It is easy to find statements that Conradin was tried and convicted of treason:

He was tried as a traitor, and on 29 October 1268 he and Frederick were beheaded.

https://military-history.fandom.com/wiki/Conradin#Political_and_military_career

Arrested and delivered to Charles, he was tried before Charles’s jury at Naples, which condemned him to death for treason to the church and to the king. He was beheaded in the public marketplace. Conradin

https://www.britannica.com/biography/Conradin

But I have found other statements on the internet:

Most violators of international law have been tried in domestic forums. Rarely was a tribunal created to try offenses against humankind. One notable early example occurred in Naples when Conradin von Hohenstafen, Duke of Suabia, was tried and later executed for initiating an unjust war on October 29, 1268.

https://repository.law.umich.edu/cgi/viewcontent.cgi?article=1351&context=mjil

Possibly the first trial for waging aggressive war is that of the Sicilian king Conradin in 1268.5

https://en.wikipedia.org/wiki/War_of_aggression

There are some German language books about Conradin which probably describe his trial:

K. Hampe, Geschichte Konradins von Hohenstaufen (Berlin, 1893)

F. W. Schirrmacher, Die letzten Hohenstaufen (Göttingen, 1871) E. Miller, Konradin von Hohenstaufen (Berlin, 1897)

But I don't read German or Ilalian or have access to large libraries which might have those books.

There is also a book which seems to be about Conradin's trial:

del Giudice, Il Giudizio e la condanna di Corradino (Naples, 1876)

So I would like to know what Conradin was specifically charged with.