Complex sentence: In 1899, she got married to Ferdinand von Strantz, the Director of the Hofoper of Berlin and by 45 years her senior and then carried the title Baronin Anna von Strantz-Führing; the couple had one daughter.
Split into simpler sentences: In 1899, she got married to Ferdinand von Strantz, the Director of the Hofoper of Berlin and 45 years her senior. She henceforth carried the title Baronin Anna von Strantz-Führing; the couple had one daughter.