//    <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="img_castello" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)">
        //        <EasingDoubleKeyFrame KeyTime="00:00:00" Value="0"/>
        //        <EasingDoubleKeyFrame KeyTime="00:00:00.0530000" Value="4"/>
        //        <EasingDoubleKeyFrame KeyTime="00:00:00.1270000" Value="-4"/>
        //        <EasingDoubleKeyFrame KeyTime="00:00:00.1970000" Value="1.985"/>
        //        <EasingDoubleKeyFrame KeyTime="00:00:00.3820000" Value="15.03"/>
        //    </DoubleAnimationUsingKeyFrames>

Storyboard storyboard1 = new Storyboard();
            DoubleAnimationUsingKeyFrames DoubleAnimationUsingKeyFrames1 = new DoubleAnimationUsingKeyFrames();
            DoubleAnimationUsingKeyFrames1.BeginTime = new TimeSpan(0, 0, 0);
            EasingDoubleKeyFrame EasingDoubleKeyFrame1_1 = new EasingDoubleKeyFrame();
            EasingDoubleKeyFrame1_1.KeyTime = new TimeSpan(0, 0, 0);
            EasingDoubleKeyFrame1_1.Value = 0;
            EasingDoubleKeyFrame EasingDoubleKeyFrame1_2 = new EasingDoubleKeyFrame();
            EasingDoubleKeyFrame1_2.KeyTime = new TimeSpan(0, 0, 0, 0530000);
            EasingDoubleKeyFrame1_2.Value = 4;
            EasingDoubleKeyFrame EasingDoubleKeyFrame1_3 = new EasingDoubleKeyFrame();
            EasingDoubleKeyFrame1_3.KeyTime = new TimeSpan(0, 0, 0, 1270000);
            EasingDoubleKeyFrame1_3.Value = -4;
            EasingDoubleKeyFrame EasingDoubleKeyFrame1_4 = new EasingDoubleKeyFrame();
            EasingDoubleKeyFrame1_4.KeyTime = new TimeSpan(0, 0, 0, 1970000);
            EasingDoubleKeyFrame1_4.Value = 1.985;
            EasingDoubleKeyFrame EasingDoubleKeyFrame1_5 = new EasingDoubleKeyFrame();
            EasingDoubleKeyFrame1_5.KeyTime = new TimeSpan(0, 0, 0, 3820000);
            EasingDoubleKeyFrame1_5.Value = 15.03;
            DoubleAnimationUsingKeyFrames1.KeyFrames.Add(EasingDoubleKeyFrame1_1);
            DoubleAnimationUsingKeyFrames1.KeyFrames.Add(EasingDoubleKeyFrame1_2);
            DoubleAnimationUsingKeyFrames1.KeyFrames.Add(EasingDoubleKeyFrame1_3);
            DoubleAnimationUsingKeyFrames1.KeyFrames.Add(EasingDoubleKeyFrame1_4);
            DoubleAnimationUsingKeyFrames1.KeyFrames.Add(EasingDoubleKeyFrame1_5);

Storyboard.SetTarget(DoubleAnimationUsingKeyFrames1, img);
            Storyboard.SetTargetProperty(DoubleAnimationUsingKeyFrames1, new PropertyPath(   "Qui non sono riuscito a trovare la sintassi giusta"  );