Frederick William dianggap nikah Frederick ka Elisabeth of Mecklenburg-Schwerin, lanceukna tina Empress Anna Rusia, tapi rencana ieu ardently opposed ku Pangeran Eugene of Savoy. Frederick dirina diusulkeun nikah Maria Theresa of Austria di balik for renouncing suksesi. Gantina, Eugene persuaded Frederick William, ngaliwatan Seckendorff, nu putra mahkota nikah Elisabeth Christine of Brunswick-Bevern, a Protestant baraya tina Austria Habsburgs. Sanajan Frederick wrote ka adina nu, "Aya bisa jadi boh cinta atawa silaturahim antara urang", sarta manéhna dianggap bunuh diri, manéhna indit sapanjang jeung kawinan dina 12 Juni 1733. Sanajan ieu manéhna kungsi saeutik di umum jeung nya jeung Pangeran resided nikah pulitik salaku conto tina gangguan pulitik Austria nu kungsi plagued saprak 1701. Sakali Frederick diamankeun tahta di 1740, manéhna nyegah nya ti ngadatangan putri mahkota ti Austria.
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