Spain France Mexico Republic CSA USA
Texas Under Spain (1519-1685, 1690-1821)
Spanish flag.

Spain established the first European claim to what is now Texas in 1519 when Cortez came to Mexico, and Alonzo Alvarez de Pineda mapped the Texas coastline. A few shipwrecked Spaniards, like Alvar Nunez, Cabeza de Vaca, and explorers such as Coronado, occasionally probed the vast wilderness, but the first Spanish settlement in Texas – the Ysleta Mission near present-day El Paso – was not established until 1681. Until Mexican independence in 1821, other Spanish missions, forts and civil settlements gradually followed. After 1785, the red and yellow striped Spanish flag depicted a shield with a lion (Leon) and a castle (Castile) topped by a crown.

Source: Lonestar Junction; Texas Handbook Online. (full source)