Isidore granted Visigothic Toledo religious and political legitimacy rivaling Byzantium

Evidence

Moreover, Reccared’s dramatic conversion marks an end to the Visigoth’s heresy; no such event cleanses Byzantium’s reputation. Religious legitimacy and political legitimacy go hand in hand, and Visigothic Toledo, for Isidore, lays equal or better claim to them than does Constantinople. Visigothic kings Leovigild and Reccared built Byzantine-style churches and aped Byzantine court ritual; Isidore is giving their successors a theoretical legitimacy meant to rival that of Byzantium. — John V. Tolan, Saracens, 136

Categorization

• ADDENDUM: Parallels the ‘Complaints About Immodesty’ theme of religious/political signaling — here orthodoxy/heresy claims as dynastic legitimacy weapons.
• XREF: Connects to the general pattern of using religious accusation for geopolitical rivalry, echoing Milgrom’s reputation-as-institution logic but in a spiritual/political register.