Saint Serf was born in 500.
Monique Andrée Serf died on November 24, 1997 at the age of 67.
Whats serf
The homonym for "serf" is "surf."
Your question is not entirely correct in its premise; a serf is not a slave and does not have an owner. A serf is a subject of a land owner whom the serf would address as lord.
In a feudal system, a serf would remain a serf no matter how hard they were to work.
Saint Raphael is an Archangel, not a human. Therefore, as Angels never die, Saint Raphael never died.
Riddle answer: a serf board.
Peasant/serf
The noble executed the serf.
The plural of the word "serf" is "serfs."
I doubt that they thought about the serf one way or the other. The serf was to do the work and didn't require much thought from his master.