Complex sentence: Grabos thus allied himself briefly with the Chalcidian League although this treaty was soon terminated and later in 356 BC with Athens, the Paeonian king Lyppeius and the Thracian king Cetriporis.
Split into simpler sentences: Grabos thus allied himself briefly with the Chalcidian League although this treaty was soon terminated. Later in 356 BC with Athens, the Paeonian king Lyppeius and the Thracian king Cetriporis.