Laodice

Laodice
Eldest daughter of Ptolemy I, and sister to Ptolemy II. With Egyptian tradition, members of the royal court were expected to attach themselves to parts of Egypt's religion. Princess Laodice entered service to the temple of Hathor. It wasn't uncommon in Egypt's past that temples became to powerful, so by making members of the royal family High Priests/Priestess the royal family would be able to maintain more control, so the plan stated.

Laodice having becoming a priestess was able to be educated, which her father hated. But in Egypt Priests/Priestesses had to be educated. This gave her more power in the court. She became an unoffical advisor to Ptolemy II when his reign began.

Politics
Egyptian politics is something that one shouldn't enter lightly. Especially now that Ptolemy II has been married to two people. These Queens can be seens as potiential rivals with Laodice and Alexiares and Nefertiri. With this triangle of rivarly certian accidents maybe prone to happen. Distrust and miss-information are powerful weapons in the royal courts. Past Queens even killed sons of other Queens so that her son would be the heir.

Roll in Peace
It was Laodice who came up with the peace treaty idea with Demetrius. But it is also suspected that Ptolemy already had such a plan in mind. The peace plan worked, Laodice be married to Demetrius, as part of the treaty and Judea gain its freedom. At least for now.

The Future
To be married off to Demetrius, King of the Antigonid Empire. Which would also seal an alliance between the two nations.