Hohenzollern still quite at home in Germany A remarkable picture of the Ex Crown Princes two war babies which also shows how nearly all the members of the family have aged or grown up since 1912 when last they were photographed all together Left to right first row Prince Alexander of Prussia ( only child of Prince August Wilhelm the Kaiser 's fourth son ) Prince Hubertue ( Ex Crown Prince Third son ) Princess Alexandrine of Prussia ( The Crowns Prince War baby born 1915 ) The Ex Hereditary Grand Duke of Hecklenburg Schwerin Princess Cecille of Prussia ( Ex Crown Prince ' s younger war baby born 1917 ) Second Row ( Left to right ) Princess Henry of Prussia ( Kaiser ' s sister in Law ) Prince Wilhelm ( Ex Crown Prince eldest son ) The Ex Crown Prince Prince Louis Ferdinand ( The Ex Crown Princes 2nd son ) The Duchess of Brunswick ( Kaiser ' s only daughter ) Princess Eitel Friedrich of Prussia ( Wife of the kaiser ' s second son ) Third Row ( Left to right ) The Countess Von Ruppin ( Morganatic wife of Prince Oscar , the Kaiser ' s fifth son Princess Adalbert of Prussia ( Kaiser ' s third son ) Prince Henry of Prussia ( The Kaiser ' s Brother ) Back Row ( Left to right ) Prince August Wilhelm of Prussia ( Kaiser s fourth son ) Princess Adalbert of Prussia ( Kaiser ' s third son ) Princess Henry XXXIII of Reuse ( born Victoria Margareta of Prussia ) Prince Eitel Friedrich of Prussia ( Kaiser 's second son ) Princess Freidrich Sigiesund of Prussia Prince Christian of Schaursburg Lippe Prince Henry XXXIII of Reuse The Ex Grand Duke Friedrich Frans of Mecklenberg Schwerin Prince Friedrich Sigissund of Prussia Prince Oscar of Prussia Prince Friedrich of Prussia ( 4th Son of the Ex Crown Prince ) 5 May 1922