The rank of Senior Commander was a rank used within the Imperial Fleet not long after the Battle of Yavin in 0 ABY. The Chimaera's Grondarle held this rank in the capacity of the ship's first officer.
Senior Commander also was a rank within the Grand Army of the Republic among the Clones, in particular, it acted as the second-highest rank among the clones, with only Marshal Commander outranking it.
Behind the scenesEdit
It appears that Senior Commander denotes a substantive rank than than a title of primacy as in the novel Choices of One, Grondarle is explicitly described as "The first officer, Senior Commander Grondarle", the capitalization of Senior Commander denoting a substantive rank in comparison to the lower-case for "first officer", a title denoting a position of executive seniority.
- Choices of One (First appearance)