Rescue services have called off the search for 30-year-old Dr Robert Allen who was swept into sea at Treyarnon Bay.
21-year-old Charles Allen died after being found and airlifted to hospital.
The brothers were part of a family party visiting the area over the weekend. They had been fishing near Padstow.
The search for a man who is missing off the coast of Treyarnon has been completed for this evening (Monday) with nothing found. A further search will resume tomorrow morning at 7.00 am.
The UK Coastguard received a 999 call this afternoon to report that two men had been washed off the rocks into the sea. One was recovered from the sea within minutes of the 999 call but despite an intensive search for the second man involving the Coastguard helicopter, Coastguard rescue teams, lifeboats, lifeguards and Devon and Cornwall Police, the missing man could not be found.
A body, thought to be that of one of two brothers who were swept out to sea while fishing in Cornwall, has been found.
21-year-old Charles Allen died after being airlifted to hospital. 30-year-old Dr Robert Allen has not yet been found.
The search at Treyarnon near Padstow resumed this morning. Another man found yesterday and airlifted to hospital has died.