Prince Liam is single. He also has a sister.
He usually resides in the Royal Castle in Highport. He is currently in Fairhaven on a mission to eradicate recent surge in piracy in the region. He is escorted on this mission by a large contingency from the Westmarch Kingsguard and Marius Verman, a Wizard of the Third Order.
As per tradition, the Prince cannot ascend the throne as King until his father's whereabouts are confirmed.