Two locally based banks, Royal Banks of Missouri and Frontenac Bank, are merging.

University City-based Royal Banks, which has five full-service branches in the region and two limited service locations, has $415 million in assets. Frontenac, based in the Earth City area, has four St. Louis area branches and $285 million in assets.

The bank will operate as Royal Banks of Missouri after the merger finalizes in the second quarter of 2016, pending regulatory approval. Financial terms of the merger announced Friday were not disclosed.

Royal Banks' Steve Baden will remain as president and oversee the operations of the merged banks, and Frontenac Bank's chairman and CEO Robert Roberson will oversee financial and administrative functions. …