Relationships
Tiffany is the sixth of the Aching children, and the second youngest, the youngest child being her only brother, Wentworth. Both her parents are alive, but she attracts little attention around the house, because she does her job well, which means nobody ever has to come and fuss over her, which in turn means nobody ever pays a lot of attention to her. While she doesn't particularly like her brother, she sets out to rescue him because he is her brother.
She is friends with several of the Nac Mac Feegle, including Rob Anybody (originally, but accidentally, her betrothed), William the Gonnagle, Hamish, and Not-as-big-as-Medium-sized-Jock-but-bigger-than-Wee-Jock Jock.
While training in Lancre, she attended a coven of young witches 'led' by Annagramma Hawkin. Tiffany and fellow coven members Lucy Warbeck and Petulia Gristle eventually acquit themselves well as witches; Annagramma, however, finds that her training, under the tutelage of Letice Earwig, had not been enough to prepare her for the reality of witching life, and her onetime coven subordinates agree to help her get on her feet.
Roland comes to have great affection for Tiffany and takes the role of the mythic hero, attempting to rescue her from the Underworld and from the romantic attentions of the Wintersmith. Tiffany herself denies having any affection for Roland, but there are many signs that she does have feelings for him, even though she does not admit it until pressured to by Nanny Ogg. However, both eventually recognise that their both being different from everybody else did not mean they had anything in common, and Roland eventually married a local noblewoman (and latent witch) Letitia Keepsake.
During the fourth book, I Shall Wear Midnight, it is revealed near the end that she has entered into a romantic relationship with an intelligent young guard, named Preston, who aspires to study medicine at the Lady Sybil Free Hospital down in the city of Ankh-Morpork, under Dr. John Lawn, and further wishes to start a medical practice of his own up in the Chalk.
Read more about this topic: Tiffany Aching