When did Visigothic law begin to apply to both Visigoths and Romans?

Visigothic law began to apply to both Visigoths and Romans in the 7th century.1

Prior to this period, the two populations were subject to distinct legal systems: the Visigoths followed their own personal law, while the Hispano-Roman population was governed by Roman law, such as the Breviary of Alaric (also known as the Lex Romana Visigothorum) issued in 506. By the 7th century, however, the two peoples had substantially fused, leading to the adoption of a territorial legal system. This transition was solidified by the promulgation of the Liber Judiciorum in 654 by King Recceswinth, which was intended to have territorial rather than personal application, effectively governing all subjects of the kingdom regardless of their origin.213