Do you that is a person Mont Real? 
 Oh that is interesting, I was thinking it may be French. So it was founded by the Italians? 
 City of Design, that's some accomplishment. Thank you for making it fun! 
 Noted by the Canadian government on its web site concerning Canadian place names speculates that the name originated when an early map of 1556 used the Italian name of the mountain Monte Real. 
 I do not had information on how old the Le Ber-Le Moyne house is, but I do have more architecture facts. Montreal was named a UNESCO City of Design in 2006 making it one of the three design capitals of the world.
Noted by the Canadian government on its web site concerning Canadian place names speculates that the name originated when an early map of 1556 used the Italian name of the mountain Monte Real.