FACTBOX: Speaker lineup for the Democratic Convention

(Reuters) - The Democratic convention that will nominate Illinois Sen. Barack Obama for president this week begins on Monday at 3 p.m. Here is a list of key speakers:

(No specific times for speeches are set, but the sessions at the convention center run between 3 p.m. and 9 p.m. Monday to Wednesday. Events on Thursday evening are held at the nearby football stadium)

MONDAY, August 25

* Michelle Obama, the candidate's wife, will be the prime-time speaker on the convention's opening day, which will focus on Obama's life story. Other speakers will include U.S. House of Representatives Speaker Nancy Pelosi, Missouri Sen. Claire McCaskill, Denver Mayor John Hickenlooper and Craig Robinson, Michelle Obama's older brother.

* Monday night will also feature a tribute to Massachusetts Sen. Edward Kennedy, a party icon now battling brain cancer.

TUESDAY, August 26

* Former Virginia Gov. Mark Warner, a U.S. Senate candidate, will be the keynote speaker on a day devoted to economic issues. New York Sen. Hillary Clinton, who narrowly lost the nomination to Obama, will speak as well.

* Other speakers include Kansas Gov. Kathleen Sebelius, Arizona Gov. Janet Napolitano, Ohio Gov. Ted Strickland, Pennsylvania Gov. Ed Rendell, Massachusetts Gov. Deval Patrick, Montana Gov. Brian Schweitzer, Pennsylvania Sen. Bob Casey and former Transportation Secretary Federico Pena.

WEDNESDAY, August 27

* Obama's vice presidential running mate, Delaware Sen. Joe Biden, will be the main speaker. National security will be the theme of the day.

* Other speakers include former President Bill Clinton, New Mexico Gov. Bill Richardson, Senate Democratic Leader Harry Reid, Indiana Sen. Evan Bayh, West Virginia Sen. Jay Rockefeller, Colorado Sen. Ken Salazar, House Democratic Whip James Clyburn, Pennsylvania Rep. Patrick Murphy and Iraq War veteran Tammy Duckworth, a 2006 House candidate.

THURSDAY, August 28

* Barack Obama will accept the party's presidential nomination. He will give his prime-time speech at Denver's football stadium, Invesco Field at Mile High, to allow more than 75,000 people to attend.

* Former Vice President Al Gore and Colorado Gov. Bill Ritter will also speak.

(Writing by Jeff Mason and Andy Sullivan; Editing by Howard Goller)