Llywelyn's coronet

It is recorded that Llywelyn ap Gruffudd, Prince of Wales and Lord of Aberffraw had deposited this crown (Welsh: Talaith) and other items (such as the Cross of Neith) with the monks at Cymer Abbey for safekeeping at the start of his final campaign in 1282.

Some sources state that Dafydd ap Llywelyn had been presented with a coronet by Henry III of England on his accession to the throne of Gwynedd in 1240.

[4] In more recent times reconstructed Welsh regalia known as the Honours of the Principality of Wales have been cast for symbolic use during the investiture ceremony of the eldest son of the King of England.

[5] The coronet made in 1911 for the investiture of the future King Edward VIII as Prince of Wales strictly adheres to the style clarified in the 1672 royal warrant.

The version created in 1969 for the investiture of Charles, Prince of Wales (the 1911 Crown was still in the possession of the Duke of Windsor in France) has deviated from the classic designs and was made using modern methods.

This image is of Llywelyn ap Gruffudd , Prince of Wales , crowned and seated beneath his personal arms. The entire picture depicts his homage to King Henry III of England in 1267 but was painted after the event.
A 16th century illustration by Lewys Dwnn of the "Arms of Wales" which shows the Crown of the Principality surmounting the Arms. In this illustration the "crown" is clearly a coronet and of a curious design. Given that Llywelyn's crown was still in existence at this time and in the possession of the English monarch then this may be a representation of what that original Welsh crown looked like as seized by Edward I in 1283.
The heraldic badge of Wales Herald Extraordinary which depicts the Cross of Neith atop a Welsh Talaith , logically that of Llywelyn.