Mariana or Maria Anna of Austria, born on 24 December 1634, was Queen of Spain from 1649 until the death of her husband Philip IV of Spain in 1665. Appointed regent for their infant son Charles II, she remained an influential figure until her death in 1696. Her regency was overshadowed by Spain's post-1648 decline, internal political divisions, and a general European economic crisis during the latter half of the 17th century. Mariana was born in Wiener Neustadt, the second child of Maria Anna of Spain and her husband Ferdinand. In 1649, she married her widowed uncle Philip IV. As regent, Mariana faced the challenges of her son's poor health, internal power struggles, and external conflicts, including the Franco-Dutch War and the Portuguese Restoration War. Despite the difficulties, she made significant diplomatic achievements, but her regency was marked by financial crises and political instability. Mariana's influence continued until her death, and her legacy is intertwined with the complex history of Spain during the 17th century.

Mariana van Zeller, born on May 7, 1976, is a renowned Portuguese-American journalist and correspondent for the National Geographic Channel. She gained recognition as the chief correspondent for Fusion and as a former correspondent for the Vanguard documentary series on the former Current TV. Throughout her career, she has received accolades, including the prestigious Peabody Award. Van Zeller's journey to success began with her studies in international relations at the Universidade Lusíada de Lisboa in Portugal. She later pursued a master's degree at Columbia University Graduate School of Journalism and embarked on a remarkable career in journalism. Fluent in multiple languages, including Portuguese, English, Spanish, Italian, and French, she has showcased her expertise through various documentaries and series, such as "Trafficked with Mariana van Zeller." In her personal life, she is married to Darren Foster, a series producer and director with the National Geographic Channel, and the couple has a son named Vasco. Mariana van Zeller's remarkable work and dedication have solidified her status as a prominent figure in the field of journalism and documentary filmmaking.

Mariana Victoria of Spain, also known as Mariana Vitória, was born on March 31, 1718, at the Royal Alcazar of Madrid, Spain. She was an Infanta of Spain and the eldest daughter of Philip V of Spain and Elisabeth Farnese. Mariana Victoria was engaged to her first cousin, Louis XV of France, as part of the reconciliation between France and Spain after the War of the Quadruple Alliance. However, she was eventually sent back to Spain in 1725, causing a diplomatic rift between Spain and France. In 1729, Mariana Victoria married the Prince of Brazil, heir to the throne of Portugal, and became the Crown Princess of Portugal. As the Queen of Portugal, she acted as regent during the last months of her husband's life and later advised her daughter, Maria I of Portugal, during her reign. Mariana Victoria was known for her intelligence and wit, and her arrival in Spain caused significant diplomatic tensions between Spain and France. Despite remaining unmarried, she was displaced by her younger brother, Infante Philip, in the line of succession to the Spanish throne. Mariana Victoria's marriage to the Prince of Brazil contributed to the complex web of European royal alliances and diplomatic relations during the 18th century.

Mariana Garza Alardín, born on October 19, 1970, in Madrid, Spain, is a renowned Mexican singer and actress. She gained recognition as a member of the popular band "Timbiriche" in 1982, paving the way for her successful career in the entertainment industry. Mariana has showcased her talent not only in music but also in soap operas, theater, and television hosting. Notably, her role in the soap opera "Alcanzar Una Estrella" garnered widespread acclaim, contributing to her status as a beloved figure in Mexican entertainment.In addition to her artistic accomplishments, Mariana is the daughter of Ana Silvia Garza and the granddaughter of Ramiro Garza and Mexican poet Carmen Alardín. She is also a dedicated mother, married to actor Pablo Perroni, and has two daughters.Mariana's influence in the music industry extends beyond her time with "Timbiriche," as she released a solo album titled "Todo Tiene Tambor" in 2001. Her enduring talent and contributions to Mexican entertainment were further celebrated when she reunited with the original members of Timbiriche to commemorate the group's 35th anniversary in 2017. This tour has continued into 2018, showcasing Mariana's lasting impact on the industry.

Mariana de Pineda y Muñoz, better known as Mariana Pineda, was a Spanish liberalist heroine born on September 1, 1804, in Granada. Her life was marked by her involvement in the liberal cause and her ultimate sacrifice for her beliefs. After marrying liberal army officer Manuel Peralta Valte at a young age and becoming a widow with two children by the age of 18, Pineda continued to support persecuted liberals and played a part in assisting Captain Fernando Álvarez de Sotomayor's escape from prison. However, her activities led to her arrest and eventual execution on May 26, 1831, for alleged conspiracy. Pineda's story has left a lasting legacy, inspiring various artistic works such as a play by Federico García Lorca, an opera by Louis Saguer, and a mini-series by Spanish TV. Her courage and dedication to the liberal cause have been commemorated with a hall inside the Seat of the European Parliament in Strasbourg bearing her name. The anniversary of her execution, May 26th, is celebrated as a local holiday in Granada, honoring her bravery and commitment to freedom.