This cultivar of the Pyrus communis species, also known as Rocha, hails from the Portuguese municipalities of Leiria, Santarém, and Lisbon. According to legend, the Pera Rocha was discovered by farmer Pedro Antonio Rocha in the town of Obidos north of Lisbon.
Rocha found a pear tree that bore exceptional fruit and shared grafts of the tree with his neighbours and friends, resulting in the rapid spread of the varietal throughout the region. The pears are harvested from August through late September, and the fruit are picked both by hand and mechanically.