System.Object
   C1.Win.Ribbon.MoreButtonSettings
   C1.Win.Ribbon.RibbonColorPalette
   C1.Win.Ribbon.RibbonColorPaletteEntry
   C1.Win.Ribbon.RibbonStyle
   C1.Win.Ribbon.StyleBrushSet
   C1.Win.Ribbon.StyleColorSet
   C1.Win.Ribbon.StyleConstSet
   C1.Win.Ribbon.StyleFlagSet
   C1.Win.Ribbon.StyleFontDelta
   C1.Win.Ribbon.StyleFontSet
   C1.Win.Ribbon.StyleGlyphSet
   C1.Win.Ribbon.ToolTipSettings
   System.Collections.CollectionBase
      C1.Win.Ribbon.RibbonGroupCollection
      C1.Win.Ribbon.RibbonItemCollectionBase
         C1.Win.Ribbon.RibbonGalleryItemCollection
         C1.Win.Ribbon.RibbonItemCollection
            C1.Win.Ribbon.RibbonQatItemCollection
      C1.Win.Ribbon.RibbonQatLinkCollection
      C1.Win.Ribbon.RibbonTabCollection
      C1.Win.Ribbon.RibbonTabGroupCollection
   System.EventArgs
      C1.Win.Ribbon.ControlHostFromXmlNodeEventArgs
      C1.Win.Ribbon.DrawItemEventArgs
      C1.Win.Ribbon.ElementToolTipEventArgs
      C1.Win.Ribbon.GalleryEventArgs
      C1.Win.Ribbon.GroupDeserializedEventArgs
      C1.Win.Ribbon.ItemDeserializedEventArgs
      C1.Win.Ribbon.MeasureItemEventArgs
      C1.Win.Ribbon.PrepareDateTimeFormatEventArgs
      C1.Win.Ribbon.PrepareNumberFormatEventArgs
      C1.Win.Ribbon.QatItemsChangedEventArgs
      C1.Win.Ribbon.RibbonEventArgs
      C1.Win.Ribbon.SelectedViewChangedEventArgs
      C1.Win.Ribbon.ShouldDrawFontEventArgs
      C1.Win.Ribbon.SpinButtonClickEventArgs
      C1.Win.Ribbon.TabDeserializedEventArgs
      C1.Win.Ribbon.TabGroupDeserializedEventArgs
      C1.Win.Ribbon.ToolTipLinkClickedEventArgs
      C1.Win.Ribbon.ToolTipPositionEventArgs
      C1.Win.Ribbon.UpdatingItemStyleEventArgs
      System.ComponentModel.CancelEventArgs
         C1.Win.Ribbon.ContextMenuPopupEventArgs
   System.MarshalByRefObject
      System.ComponentModel.Component
         C1.Win.Ribbon.RibbonContextualTabGroup
         C1.Win.Ribbon.RibbonGroup
         C1.Win.Ribbon.RibbonItem
            C1.Win.Ribbon.RibbonColorPickerItem
            C1.Win.Ribbon.RibbonControlHost
            C1.Win.Ribbon.RibbonIconItem
               C1.Win.Ribbon.BackstageViewTab
               C1.Win.Ribbon.RibbonButton
                  C1.Win.Ribbon.RibbonCheckBox
                  C1.Win.Ribbon.RibbonToggleButton
               C1.Win.Ribbon.RibbonDropDownBase
                  C1.Win.Ribbon.C1BackstageView
                  C1.Win.Ribbon.RibbonApplicationMenu
                  C1.Win.Ribbon.RibbonComboBox
                     C1.Win.Ribbon.RibbonFontComboBox
                  C1.Win.Ribbon.RibbonDatePicker
                  C1.Win.Ribbon.RibbonGallery
                  C1.Win.Ribbon.RibbonMenu
                  C1.Win.Ribbon.RibbonSplitButton
                     C1.Win.Ribbon.RibbonColorPicker
               C1.Win.Ribbon.RibbonGalleryItem
               C1.Win.Ribbon.RibbonLabel
               C1.Win.Ribbon.RibbonNumericBox
               C1.Win.Ribbon.RibbonTextBox
                  C1.Win.Ribbon.RibbonEditBox
               C1.Win.Ribbon.RibbonTimePicker
            C1.Win.Ribbon.RibbonItemContainer
               C1.Win.Ribbon.RibbonBottomToolBar
               C1.Win.Ribbon.RibbonConfigToolBar
               C1.Win.Ribbon.RibbonQat
               C1.Win.Ribbon.RibbonToggleGroup
               C1.Win.Ribbon.RibbonToolBar
               C1.Win.Ribbon.RibbonTopToolBar
            C1.Win.Ribbon.RibbonListItem
            C1.Win.Ribbon.RibbonProgressBar
            C1.Win.Ribbon.RibbonQatGroupButton
            C1.Win.Ribbon.RibbonSeparator
            C1.Win.Ribbon.RibbonTrackBar
         C1.Win.Ribbon.RibbonTab
         System.Windows.Forms.Control
            C1.Framework.ScrollableControl
               C1.Framework.XView
                  C1.Win.Ribbon.C1Ribbon
                  C1.Win.Ribbon.C1StatusBar
            System.Windows.Forms.ScrollableControl
               System.Windows.Forms.ContainerControl
                  System.Windows.Forms.Form
                     C1.Win.Ribbon.C1RibbonForm

Reference

C1.Win.Ribbon.4.5.2 Assembly