Ashley and Twilight co-star Robert Pattinson are scheduled to appear in Paris, France on October 23rd and 24th to meet fans as part of  The Twilight Saga: Breaking Dawn – Part I promotional tour! Below is the official press release (translated):

“On the occasion of the release of TWILIGHT – Chapter 4: Revelation Part 1, Robert Pattinson and Ashley Greene will be in Paris on October 23 and 24 to promote the film.
Meanwhile the world premiere to be held in the United States in November, the distributor SND decided to organize a great event to offer a nice surprise for French fans of the saga.

On Sunday, October 23, 500 fans will be able to meet Robert Pattinson and Ashley Greene and ask direct questions they want. This meeting is free and will take place at the Gaumont Capucines.
Next week we will have more information regarding the organization of this event, space availability and how to get tickets”

Sources: 1, 2

It was announced today Ashley and Robert will be in Belgium too:

(Press Release) Belga Films is pleased to announce the arrival in Belgium of Robert Pattinson and Ashley Greene Wednesday, October 26, 2011. The two actors will be at Square in Brussels at an exclusive event reserved for fans of the Twilight. Twilight 4: Revelation – Part 1 released in cinemas in Belgium on November 16. Twilight 4: Revelation – Part 1, Bella (Kristen Stewart) and Edward (Robert Pattinson), surrounded by their loved ones face the consequences of their union, after their wedding night, and sudden unexpected birth of a child going to mess up in a strange way the behavior of Jacob Black (Taylor Lautner). The first part of this fourth component is produced by Bill Condon (Dreamgirls, Gods and Monsters), screenplay by Melissa Rosenberg adapted from the novel by Stephenie Meyer Revelation. The cast of this episode, we also find Kristen Stewart, Taylor Lautner, Dakota Fanning, Nikki Reed, Kellan Lutz, Jackson Rathbone, Peter Facinelli and Elizabeth Reaser. The last episode, Twilight Revelation Chapter 4 Part 2, released in November 2012 in Belgium.

Source: Twilight-Belgium , via

Stockholm, Sweden will be another stop for Ashley and Rob on their European leg tour:

On Friday, 28 October actors Robert Pattinson and Ashley Greene will be in Stockholm Sweden for the premiere of THE TWILIGHT SAGA: BREAKING DAWN – part 1. Robert Pattinson, who plays Edward Cullen, Ashley Greene, who plays Edward’s sister Alice Cullen, both have become some of the world’s biggest movie stars after the successes of the previous three films in The Twilight Saga: “Twilight,” “New Moon” and “Eclipse.

The cast of Twilight movies again choose Stockholm as one of the stations of the his promotional tour in Europe as the result of good cooperation with the American producers Summit Entertainment. One more reason is The Twilight Saga’s success in this part of the world and the inexhaustible commitment from the Scandinavian fanbase. We are extremely proud and pleased the fans’ behalf that these two superstars have also chosen to come to Stockholm, says Pia Grünler, Distribution Manager Nordisk Film

Nordisk Film will also this time arranging a TWILIGHT FAN EVENT Friday, 28 October at the Royal Court where Robert Pattinson and Ashley Greene will meet their Scandinavian fans. The program for this event is being put together and is not yet clear. More information about this event is released shortly.

Source: TwilightSweden (Google translated)