Eagle-eyed fans rushed to Twitter after spotting the apparent announcement, with many commending the 'Sherlock' actor’s decision to share his happy news in a low-key fashion.
The announcement, listed under the ‘Forthcoming Marriages’ section of the paper, reads:
MR B.T. Cumberbatch And Miss S.I Hunter
The engagement is announced between Benedict, son of Wanda and Timothy Cumberbatch of London, and Sophie, daughter of Katharine Hunter of Edinburgh and Charles Hunter of London.
Benedict and Sophie have been quietly dating for months, and the couple have made just a handful of public outings together.
Theatre Director Sophie has been praised by critics for a number of her professional efforts, including a 2010 revival of Henrik Ibsen's 'Ghosts'.
She has also recorded a french music album, 'The Isis Project', and made a handful of acting appearances on the small screen.
Last month, the couple enjoyed a night out in London, though they chose to arrive separately at the restaurant they were dining in.
Engagement rumours first started circulating in late October, when the actor was spotted in Sophie’s parents’ hometown of Edinburgh.