How to display a title in an XABP application using ribbon

<Page x:Class="Realtech.ControlCenter.Client.ShellView"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
      xmlns:nmdb="clr-namespace:NMDB;assembly=nmdbid.net" 
      xmlns:ribbon="http://schemas.actiprosoftware.com/winfx/xaml/ribbon"      
      xmlns:themes="http://schemas.actiprosoftware.com/winfx/xaml/themes"
      xmlns:ribboneditors="http://schemas.actiprosoftware.com/winfx/xaml/ribboneditors"
      xmlns:local="clr-namespace:Realtech.ControlCenter.Client" 
      themes:ThemeManager.Theme="Office2007Black"
      Name="mainPage"       
      Loaded="ShellView_Loaded"      
      mc:Ignorable="d" 
      MinHeight="300" MinWidth="300"
      d:DesignHeight="300" d:DesignWidth="500"
      Title="theGuard! Business Service Management ControlCenter" >

   <DockPanel Background="{DynamicResource {x:Static themes:RibbonCommonDictionary.WindowWorkspaceBackgroundBrushKey}}">

      <!-- ribbon menu -->
      <ribbon:Ribbon x:Name="ribbon" DockPanel.Dock="Top"
                     ApplicationButtonImageSource="{Binding Source={StaticResource theGuard_Logo}}" 
                     IsApplicationButtonVisible="True"                                 
                        ApplicationButtonScreenTipHelpUri="http://www.realtech.com"
                        IsCustomizeQuickAccessToolBarMenuItemVisible="True"
                     IsQuickAccessToolBarCustomizationEnabled="True"
                     ribboneditors:RibbonEditorsStyleBehavior.ApplyRibbonCompatibleStyles="True">

         <!-- Tab Panel Items (Appear next to the tabs) -->
         <ribbon:Ribbon.TabPanelItems>
            <ribbon:Button ImageSourceSmall="/Images/help2_16.png" Label="Application Help" Command="local:ApplicationCommands.Help"  KeyTipAccessText="Z" />
         </ribbon:Ribbon.TabPanelItems>

      </ribbon:Ribbon>

      <Grid x:Name="MainGrid" >
         <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto" />
            <ColumnDefinition Width="*" />
         </Grid.ColumnDefinitions>
         <ContentControl Grid.Column="0" Name="_navigationContent" />
         <ContentControl Grid.Column="1" Name="_workspaceContent" />
      </Grid>

   </DockPanel>

</Page>