Sherlock Holmes · Character
Lord Robert St. Simon
Also known as Lord St. Simon
- Supporting
- First seen · Book 2 · Ch. 11
He carries the polish of old aristocracy, his high-nosed face masking a petulant edge beneath steady eyes. There's a foppish elegance to his stoop that whispers of privilege tinged with impatience, inviting scrutiny of his polished facade.
- Gender
- male
- Age
- 41
- First appears
- Book 2 · Ch. 11
- Books
- 1
Lord Robert St. Simon appears solely in The Adventures of Sherlock Holmes as a titled aristocrat whose carefully cultivated public image collapses when his secret bigamy is exposed. Initially presented as a wronged nobleman seeking Holmes’s help to recover his vanished bride, St. Simon is revealed to have contracted an earlier marriage to the music-hall dancer Flora Millar, whom he abandoned for the wealthy American heiress Hatty Doran. When Hatty recognizes her long-lost first husband Francis Moulton at the wedding breakfast and elopes with him, St. Simon’s double life is laid bare; he withdraws from society in disgrace, his aristocratic arrogance supplanted by quiet humiliation.
Description
Pleasant cultured face, high-nosed and pale, with a petulant mouth and steady well-opened eye. Grizzled hair rounds the edges while thin on top; slight forward stoop and bend of knees. Careful dress to the verge of foppishness: high collar, black frock-coat, white waistcoat, yellow gloves, patent-leather shoes, light-coloured gaiters, curly-brimmed hat, golden eyeglasses on a cord; ink smear on right little finger.
Connections
Family & partnersFriends & mentorsRivals
- HD
Hatty Dorannewlywed bride (who leaves him)
St. Simon’s marriage to Hatty is a calculated social alliance that collapses within hours when she recognizes her first husband, Francis Moulton, and leaves St. Simon at the altar.
- FM
Flora MillarPartner
St. Simon’s earlier clandestine marriage to the dancer Flora Millar is the hidden foundation of the scandal; her public confrontation at the wedding breakfast precipitates his downfall.

Sherlock Holmesclient
St. Simon engages Holmes as a client to recover his missing bride; Holmes’s investigation instead unmasks St. Simon’s own deception, ending their brief professional relationship in mutual contempt.
Story so far
BOOK 2The Adventures of Sherlock Holmes
- Contracts a secret first marriage to Flora Millar, which he later conceals.
- Marries American heiress Hatty Doran in a lavish society wedding.
- Hires Sherlock Holmes to locate his missing bride after she vanishes from the wedding breakfast.
- Is publicly exposed as a bigamist when Holmes reveals his prior marriage and Hatty’s reunion with her true husband Francis Moulton.
- Retreats from London society in disgrace, his reputation permanently tarnished.
Key events
Appearances
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