Félix-Alexandre Guilmant was a French organist and composer. He was the organist of La Trinité from 1871 until 1901. A noted pedagogue, performer, and improviser, Guilmant helped found the Schola Cantorum de Paris. He was appointed as Professor of Organ in the Conservatoire de Paris in 1896.

The Église de la Sainte-Trinité is a Roman Catholic church located on the place d'Estienne d'Orves, at 3 rue de la Trinité, in the 9th arrondissement of Paris. It was built between 1861 and 1867 during the reign of Emperor Napoleon III, in the residential neighborhood of the Chaussée d'Antin. It is in the ornate Neo-Renaissance or Second Empire Style, with a highly visible 65-meter-tall belfry.