He issued a charter, dated 762 in error for 765, as Osmundus.

He appears in royal charters dated as early as 1147.

His name was also added to a forged charter dated 956 (possibly an error for 976).

It is recorded even earlier in a charter dated 958.

Peace was ensured in a charter dated May 22, 1254, and the crisis ended.

This was agreed, and put into law by a charter dated 17 March 1337.

He last appears in a royal charter dated 14 March 697.

His name was only maintained by a 15th-century copy of an obviously falsified charter dated to 1093.

The marriage was documented in a charter dated February 1233.

He made peace with Ragusa, seen in a charter dated to May 22nd, 1254.