Sancho I was a king of Portugal who reigned from 1185 to 1211. He was the son of Afonso I, the first king of Portugal, and played a significant role in consolidating the kingdom's power. Sancho I is often referred to as "Sancho I of Portugal" or "Sancho I, the Populator" due to his efforts in promoting settlement and agriculture in the region. During his reign, Sancho I focused on expanding the territory of Portugal and strengthening its defenses against external threats. He was known for his piety and support of the Catholic Church, which helped to solidify his authority. His reign laid the groundwork for future developments in the kingdom.