Peculium castrense:
Everything that a filius familias erned or acquired from, or during, his military service (in castris). From the time of August he was permitted to dispose of it by testament. Hadrian extended this privilege to solders discharged from service and veterans. The peculium castrense embraced the gifts which th soldier received when he entered service and inheritances received from fellows solders. Later, a filius familias might freely dispose of his peculium castrense since "with regard to it he acts as a head of a familiy (pater familias)" D. 14.6.2. - D. 49.17; C. 1.3; 12.30; 12.36.