Denier - Otto IV and Otto V

The joint naming of Otto IV and Otto V on this denier reflects the co-regency arrangement that characterized Brandenburg's Ascanian administration in the later thirteenth century, where multiple margraves governed simultaneously to manage the increasingly fragmented territorial holdings left by Otto III's death. The practice was politically necessary but numismatically messy — attributing specific issues to precise regnal moments within joint reigns remains contested among Brandenburg specialists, and Bahrfeldt's numbering has been revised or reordered by subsequent scholarship more than once.