Andrés de Santa Cruz y Calahumana (1792 1865) Served as President of Peru in 1827 and President of Bolivia from 1829 until 1839, where he was elected after the resignation of Antonio José de Sucre. In 1836 he persuaded Peru to unite with Bolivia, and appointed himself Supreme Protector of the Peru-Bolivian Confederacy. However, in February 1839, In part becouse of internal turmoil and a Expeditionary Force send by Chile, the confederacy fell apart and Santa Cruz was not able to hold on to power in either nation.

Early years

He was born in the city of La Paz, in now a days Bolivia, in September 5, 1792.(During this time, Bolivia was also know as "Upper Peru"). His mother was Mara Basilia Calahumana, and his father was Josep de Santa Cruz y Villavicencio. He studied in Cuzco, in San Bernando School, leaving for Lima, in 1820. During the early years of his military career, he serve in the Spanish Army, located in the Viceroyalty of Peru, one of the stronholds of the Spanish Empire in South America. Viceroy Pezuela appointed him Commander in Chief of the South Coast and Military Commander of the Port of Chorrillos.

The Indepence war

|- style="text-align: center;" | width="30%" |Preceded by:
Simón Bolívar | width="40%" style="text-align: center;" |President of Peru
1826–1827 | width="30%" |Succeeded by:
José de La Mar

|- style="text-align: center;" | width="30%" |Preceded by:
José Miguel de Velasco | width="40%" style="text-align: center;" |President of Bolivia
1829–1839 | width="30%" |Succeeded by:
José Miguel de Velasco

|- style="text-align: center;" | width="30%" |Preceded by:
None | width="40%" style="text-align: center;" |Supreme Protector of the Confederacy
1836–1839 | width="30%" |Succeeded by:
None - Confederation dissolved