Lloyd Osbourne and Isobel Osbourne Field
Robert Louis Stevenson had one stepson, Lloyd Osbourne, who was the son of Stevenson's wife Fanny's previous marriage. Stevenson and Fanny did not have any children together.
Robert Louis Stevenson went to Grez-sur-Loing in France for his honeymoon with his wife Fanny Osbourne.
He married Fanny van de Grift Osbourne in May 1880
Her first husband was Samuel Osbourne. Her second husband was Robert Louis Stevenson.
Robert Louis Stevenson's father was a lighthouse engineer and his mother came from a family of distinguished lighthouse engineers.
Yes, He was married to Fanny Osborne
Stevenson's wife was Fanny Van de Grift Stevenson. (source The Life of Mrs. Robert Louis Stevenson, by Nellie Sanchez, 1920)
Fanny Stevenson, Robert Louis Stevenson's wife, took care of him during his illness. She was known to be a devoted wife and provided him with love and support during his times of illness.
His adventures, which included coming very near death and eking out a precarious living in Monterey and San Francisco, culminated in marriage to Fanny Osbourne (who was by then divorced from her first husband) early in 1880.
R. L. S. (Robert Louis Stevenson) R. L. B. S. (Robert Louis Balfour Stevenson)
His initials: R.L.S (Robert Louis Stevenson)