Coordinates: 48°49′02″N 2°19′19″E / 48.8172°N 2.3219°E / 48.8172; 2.3219

Montrouge (French pronunciation: [mɔ̃.ʁuʒ]) is a commune in the southern Parisian suburbs, located 4.4 km (2.7 mi) from the center of Paris, France. It is one of the most densely populated municipalities in Europe. After a long period of decline, the population has increased again in recent years.

There are a number of colorful traditions about the name "Montrouge", but it appears that it in fact comes from the Latin words monte (mountain) and rubeus (red), meaning Red Mountain, because of the reddish color of the earth in this area.

The name of the community was first mentioned in monastery documents in 1194.

Throughout the Middle Ages, the hamlet was home to monasteries and a number of religious orders, while in the 15th century it became the site of quarries used for the reconstruction of Paris. The late sixteenth century saw the plain of Montrouge named "reserve for royal hunts", and during the seventeenth and eighteenth centuries it was known for its windmills, which, sadly, have all now disappeared.

Robert John Wagner (born February 10, 1930) is an American actor of stage, screen, and television, best known for starring in the television shows It Takes a Thief (1968–70), Switch (1975–78), and Hart to Hart (1979–84). In movies, Wagner is known for his role as Number Two in the Austin Powers films (1997, 1999, 2002). He also had a recurring role as Teddy Leopold on the TV sitcom Two and a Half Men.

Wagner's autobiography, Pieces of My Heart: A Life, written with author Scott Eyman, was published on September 23, 2008.

Wagner was born in Detroit, Michigan. He is the son of Hazel Alvera (née Boe), a telephone operator, and Robert John Wagner Sr., a traveling salesman who worked for the Ford Motor Company. His paternal grandparents were born in Germany. Wagner has a sister, Mary. He graduated from Santa Monica High School in 1949.

He made his film debut in The Happy Years (1950). He was signed by agent Henry Willson and put under contract with 20th Century-Fox, where he gained attention with a small but showy part as a shellshocked soldier in With a Song in My Heart (1952). This led to star roles in a series of films including Beneath the 12-Mile Reef (1953) and Prince Valiant (1954), and White Feather (1955, with Debra Paget and Jeffrey Hunter), A Kiss Before Dying (1956, a rare villainous role) and Between Heaven and Hell (1956).