Lord blah bla, owner of blah blah, has entered the battle... or whatever.
The thing is, medieval lords were rarely owners of fiefs in today's sense. They were holding them for their liege, manage them and were obliged to provide him with troops in return.
Besides, owner sounds way too capitalist.
Therefore, I suggest that this be changed into Lord blah bla, protector of blah blah, has entered the battle.
And btw, FREE PANOS!