R. Lucia Riddle of the Principal Financial Group Named One of the "Top 100 Most Influential Blacks in Corporate America"

R. Lucia Riddle, vice president of Federal Government Relations at the Principal Financial Group^®, has been named by Savoy Professional magazine as one of the "Top 100 Most Influential Blacks in Corporate America.” The prestigious list showcases leaders with exemplary accomplishments, influence in their companies and communities and an ability to inspire others.

Riddle currently co-directs legislative and advocacy efforts in the Washington, D.C. office of the Principal Financial Group, with a focus on the company’s life and health, privacy, tax and financial services issues. She joined the company in 1974 as a management trainee in the health division and since then, Riddle has risen through the organization, serving in a variety of leadership roles.

"For more than 30 years, Lucia has demonstrated leadership and dedication at The Principal. Her enthusiasm and passion reach beyond her work, in support of community and social issues that are important to her and to The Principal,” said Karen Shaff, executive vice president and general counsel of the Principal Financial Group. "We congratulate Lucia on being named to this impressive list of accomplished professionals.”

Riddle serves on the boards of the Executive Leadership Council, Public Affairs Council, Guttmacher Institute, African-American Experience Fund of the National Parks Service, Smithsonian National Museum of African American Art, National Coalition and Caucus for the Black Aged, Americans for UNFPA and is an Honorary Trustee of the Des Moines Art Center. She is also a member of the Washington Government Relations Group, the Capital City Chapter of The Links, Inc. and Alpha Kappa Alpha Sorority, Inc. She is a member of Sigma Iota Epsilon, an honorary business fraternity.

Also active in many industry organizations, Riddle is a Fellow of the Life Management Institute (FLMI) and holds professional designations from America’s Health Insurance Plans and the International Claims Association. She is a member of several insurance and financial service industry related technical and policy committees for organizations such as; America’s Health Insurance Plans (AHIP), the American Benefits Council (ABC), the American Council of Life Insurers (ACLI), the Business Roundtable (BRT), the Financial Services Roundtable (FSR) and the Securities Industry and Financial Markets Association (SIFMA).

A native of St. Louis, Missouri, Riddle received her MBA from Drake University in Des Moines, Iowa.

A photo of Riddle is available, upon request.

About the Principal Financial Group

The Principal Financial Group® (The Principal®)¹ is a leader in offering businesses, individuals and institutional clients a wide range of financial products and services, including retirement and investment services, life and health insurance, and banking through its diverse family of financial services companies. A member of the Fortune 500, the Principal Financial Group has $308.0 billion in assets under management² and serves some 19.0 million customers worldwide from offices in Asia, Australia, Europe, Latin America and the United States. Principal Financial Group, Inc. is traded on the New York Stock Exchange under the ticker symbol PFG. For more information, visit www.principal.com.

¹ "The Principal Financial Group" and "The Principal” are registered service marks of Principal Financial Services, Inc., a member of the Principal Financial Group.

² As of June 30, 2008