When turning left at this intersection, are you obliged to give priority to vehicles that could be approaching from the right?

You are approaching a junction of roads of equal importance, which is indicated by the absence of signs establishing right of way (e.g., A-7 "Give Way" or D-1 "Priority Road"). At this type of junction, the right-hand rule applies. According to this rule, you are required to give way to all vehicles approaching from your right.