In the Mistborn series, we've seen the Shard entities known as Preservation and Ruin, they are Shards, wielded by Leras and Ati respectively. My question is, do we know from in-universe information, if two (or more) Shards or Shardwielders have ever fought so openly in any of the other books?

I know that we've had Dominion and Devotion in Elantris, and Honour, Odium and Cultivation in the Stormlight Archives.

I don't believe that we've ever had such outright war between any of the other Shards or Shardwielders, am I not remembering something?