Born Sarah Maria Luisa Valentina Lorenz on 12 February 1981 in Munich to Holger Lorenz and Constance Neuhann.
She went to school in Prutting and Soechtenau as well as in Munich.
She graduated from Sevenoaks School in Kent, England with the International Baccalaureate.
She studied at the “Institut für Geschichte und Ethik der Medizin” of the “Munich Technical University”, and completed her medical diploma in 2007.
In 2009 received her doctorate with the title “Dr. med “
She married His Serene Highness Alexander, The Hereditary Prince of Isenburg civilly on 14th June 2014 in Stucco Hall of Birstein Castle. On 12th July 2014 they married in a religious ceremony in the monastery church Frauenwörth on the Fraueninsel in Chiemsee. His Excellency the Auxiliary Bishop of Fulda, Prof. Dr. Karlheinz Diez.
Princess Alix of Isenburg (Alix Imagina Blanca Irmingard Maria) born 24th November 2015 in Munich.
Princess Zita of Isenburg (Zita Maria Immaculata Elisabeth Irina) born 5th January 2017 in Munich.
Franz Salvator, The Hereditary Prince of Isenburg (Franz Salvator Ferdinand Bonifatius Wilhelm Maria) born 8th August 2019 in Munich.
12 February 1981 – 2009; Miss Sarah Lorenz
2009 – 14th June 2014; Dr Sarah Lorenz
14th June 2014 – 5th May 2018; Her Serene Highness Princess Dr. Sarah of Isenburg
5th May 2018 – Present; Her Serene Highness Dr. Sarah, Princess of Isenburg