Complex sentence: This ill-judged move quickly resulted in O'Murphy's downfall at court; a marriage was arranged to Jacques Pelet de Beaufranchet, seigneur d'Ayat (born 5 March 1728), who took place on 27 November 1755 in Paris.
Split into simpler sentences: This ill-judged move quickly resulted in O'Murphy's downfall at court. A marriage was arranged to Jacques Pelet de Beaufranchet, seigneur d'Ayat (born 5 March 1728), which took place on 27 November 1755 in Paris.