or ian ▁Guard ▁▁ ▁Origin ally , ▁the ▁Pra et or ian ▁Guard ▁was ▁rec ru ited ▁from ▁the ▁populations ▁of ▁central ▁Italy ▁( E tr uria , ▁Um b ria ▁and ▁Lat ium ▁according ▁to ▁T ac it us ). ▁Rec ruits ▁were ▁between ▁ 1 5 ▁and ▁ 3 2 ▁years ▁of ▁age , ▁compared ▁to ▁leg ion ary ▁rec ruits ▁who ▁r anged ▁from ▁ 1 8 ▁to ▁ 2 3 ▁years ▁of ▁age . ▁According ▁to ▁Cass ius ▁D io , ▁during ▁the ▁first ▁two ▁centuries ▁AD ▁and ▁before ▁the ▁reform ▁of ▁Sept im ius ▁Sever us , ▁the ▁Pra et ori ans ▁were ▁exclus ively ▁limited ▁to ▁Italy , ▁Spain ▁( R oman ▁province ), ▁Mac ed onia ▁and ▁Nor icum ▁( current ▁Austria ). ▁ ▁Under ▁the ▁reign ▁of ▁Vit elli us , ▁and ▁starting ▁from ▁Sept im ius ▁Sever us , ▁men ▁were ▁transferred ▁from ▁the ▁Urban ▁V ig iles , ▁Urban ▁coh ort s , ▁and ▁the ▁various ▁leg ions . ▁This ▁recent ▁method ▁and ▁manner ▁of ▁rec ruit ment ▁at ▁the ▁corps ▁of ▁the ▁leg ions ▁became ▁the ▁normal ▁procedure ▁to ▁rec ruit ▁in ▁the ▁ 3 rd ▁century ▁after ▁Sept im ius ▁Sever us ▁de alt ▁with ▁the ▁und is cipl ined ▁Pra et ori ans ▁who ▁assass in ated ▁P ert ina x ▁in ▁ 1 9 3 , ▁and ▁replaced ▁them ▁with ▁men ▁from ▁his ▁own ▁Dan ube ▁leg ions . ▁ ▁At ▁that ▁time , ▁the ▁Pra et ori ans