Wilhelm Erbprinz von Hessen-Philippsthal-Barchfeld (born 1963) (b. 1963) Parents Wilhelm, Landgrave of Hesse-Philippsthal-Barchfeld Oda-Mathilde von Garmisson Children Philipp Landgraf von Hessen-Philippsthal-Barchfeld Wilhelm Landgraf von Hessen-Philippsthal-Barchfeld Konrad Landgraf von Hessen-Philippsthal-Barchfeld Siblings Otto Prinz von Hessen-Philippsthal-Barchfeld Partners Susanne Alexandra Margret von Kaufmann