This was an important event as it signalled the start of a policy of friendship between the Kingdom of Pontus and the Roman Republic and her allies which would continue until Mithridates VI Eupator.
[8] In 1995, a treasure of many gold items, including a royal crown, was accidentally unearthed at Samsun--the old capital of Amisos that served the later Mithridatic dynasty.
This Amisos Treasure has been ascribed to the reign of Mithridaes IV, and is now held at a local museum in Samsun.
The coins issued with his sister-wife display a fine double portrait and they adapted a Ptolemaic model for coinage.
An example of a coin on which Mithridates IV honours his Persian origins was one featuring a reverse type of Perseus.
On the side of their royal titles, the coin depicts Mithridates IV and Laodice struck in the image of the Greek patron gods Zeus and Hera, who are standing facing front.