. ▁When ▁the ▁A then ians ▁heard ▁that ▁Alexander ▁had ▁died , ▁they ▁revol ted ▁against ▁Mac ed onia ▁and ▁the ▁new ▁reg ent , ▁Ant ip ater . ▁Le onn atus ▁led ▁an ▁army ▁of ▁ 2 0 , 0 0 0 ▁inf antry ▁with ▁ 1 , 5 0 0 ▁caval ry ▁to ▁rel ieve ▁Ant ip ater ▁during ▁the ▁sie ge ▁in ▁Lam ia ▁( see ▁Lam ian ▁War ). ▁He ▁interven ed ▁probably ▁with ▁the ▁amb ition ▁to ▁us ur p ▁Ant ip ater ' s ▁power . ▁A ▁victory ▁in ▁battle ▁against ▁the ▁A then ians ▁would ▁have ▁certainly ▁en hanced ▁his ▁claim ▁to ▁the ▁throne . ▁Le onn atus ▁was ▁killed ▁in ▁battle ▁against ▁the ▁A then ians ▁and ▁his ▁marriage ▁with ▁Cle op atra ▁never ▁took ▁place . ▁ ▁Notes ▁ ▁External ▁links ▁Le onn atus ▁at ▁Liv ius . com ▁ ▁Category : 3 5 6 ▁BC ▁birth s ▁Category : 3 2 2 ▁BC ▁death s ▁Category : 4 th - century ▁BC ▁Greek ▁people ▁Category : S om at oph y la kes ▁Category : An cient ▁Mac ed onian ▁gener als ▁Category : Gener als ▁of ▁Alexander ▁the ▁Great ▁Category : S atra ps ▁of ▁the ▁Alexand rian ▁Empire ▁Category : An cient ▁Mac ed oni ans ▁killed ▁in ▁battle ▁Category : An cient ▁L ync est ians ▁Category : T rier arch s ▁of ▁N earch us ' ▁fleet ▁Category : 4 th - century ▁BC ▁Mac ed oni ans ▁Category