Analysis of information sources in references of the Wikipedia article "Laodice (sister-wife of Mithridates IV of Pontus)" in English language version.
The resemblance between the portrait of this coin and the Laodice of the joint tetradrachm, and the presence of the similar reverse Hera, make it very likely that the Laodice of this second coin is the wife and co-regent of Mithridates IV.