Ferdinand I of Bulgaria
On 20 April 1893 at the Villa Pianore in Luccia in Italy, he married Maria Luisa Pia Teresa Anna Ferdinanda Francesca Antonietta Margherita Giuseppina Carolina Bianca Lucia Appollonia, Princess of Bourbon-Parma, daughter of Roberto I of Parma. He was also thought to be bisexual, even after marrying his first wife.