The daughters of 'El Mayo' Zambada: the dark side of the Sinaloa Cartel's criminal dynasty

The daughters of ‘El Mayo’ Zambada have played a crucial role in the financial structure of the criminal empire his father built over more than three decades. For years, U.S. authorities have kept them under close surveillance, identifying them as key figures in money laundering operations and asset management for the Sinaloa Cartel, one of the most powerful criminal organizations in the world.

Four sisters in the sights of U.S. authorities

The family of Ismael Zambada García was under intense scrutiny long before his capture in 2024. Investigations revealed that four of his direct daughters — María Teresa, Midiam Patricia, Mónica del Rosario, and Modesta — actively participated in companies and transactions linked to the cartel’s money laundering. According to reports from the U.S. Department of the Treasury and the Office of Foreign Assets Control (OFAC), these women operated within a business structure that served as a front to legitimize illicit gains.

María Teresa Zambada, born June 17, 1969, appears in intelligence documents as a facilitator of financial operations. Her name is listed in companies identified by authorities as instruments of the cartel’s money laundering.

Midiam Patricia (born March 4, 1971) and Mónica del Rosario (born March 2, 1980) also faced sanctions in 2019 for their involvement in money laundering schemes. Although they were later removed from OFAC’s lists, their names remain in official investigation records as indicators of the family’s criminal network reach.

Modesta Zambada, the youngest of the four (born November 22, 1982), maintained a more discreet profile than her sisters. However, intelligence reports identify her as part of the close family circle involved in suspicious business activities related to the cartel.

Rosario Niebla Cardoza: the mother of the first criminal generation

In 1969, when Ismael Zambada was just beginning to establish his drug trafficking empire at age 19, he married Rosario Niebla Cardoza, his first wife. They had five children: four daughters and a son. Among them is Jesús Vicente Zambada Niebla, known as “El Vicentillo” (born May 10, 1975), who was extradited to the United States and is currently serving a sentence in the U.S. prison system.

In a 2010 interview with journalist Julio Scherer, Ismael Zambada revealed that he was living with six women — his wife and five others — and at that time had fifteen grandchildren and a great-grandchild. “They, the six of them, are here, on the ranches, they are children of the land like me,” the capo stated in a rare confession about his personal life.

Plea agreement and legal implications

On August 25, 2025, Ismael Zambada García pleaded guilty before a federal court in Brooklyn, New York, to drug trafficking and organized crime charges. This agreement with U.S. authorities allowed him to avoid a lengthy trial, in exchange for publicly acknowledging his role as the top leader of a criminal organization that operated from 1989 to 2024. His sentencing hearing is scheduled for April 13 of this year, when a federal judge will reveal the sentence he faces after decades leading the cartel he co-founded with Joaquín “El Chapo” Guzmán.

The apparent heirs: the second generation of power

Beyond his five children from his first marriage, Ismael Zambada had offspring with other women, some of whom have been identified as potential successors within the cartel hierarchy. Ismael Zambada Sicairos, alias “El Mayito Flaco” — son of María del Refugio Sicairos Aispuro — is considered by security analysts as one of the main contenders for organizational leadership. Since 2013, he has been on the DEA’s wanted list, and was even named “fugitive of the week” in 2023.

Other important heirs include Ismael Zambada Imperial, nicknamed “El Mayito Gordo,” who was granted parole in 2022, and Ismael Serafín Zambada Ortiz, known as “El Sera,” also released in 2022 after authorities classified his conduct as “good behavior.”

The crime dynasty woven by Ismael Zambada extends beyond him, manifesting in a complex network of daughters, sons, and descendants who have continued financial operations and power within one of the most influential cartels in the Americas.