Origin.
In 1836, Mr. Pedro António Rocha discovered a different pear tree by chance on his property, Fazenda Rocha, which was located in Ribeira de Sintra, in the West region, close to Lisbon.
Proud of having unique fruits of unusual quality, every year in September he invites his friends to enjoy the pears. 
It was from this tree that the variety spread and gained fame. In honor of its owner, this rare fruit was renamed Pera Rocha.
Its official recognition only happens 90 years later during the 2nd National Congress of Pomology, in Alcobaça. Agricultural director Guilherme Joaquim da Matta made a statement about Pera Rocha, telling about his visit to the farm.
At the time, it was one of the most important pear varieties in Portugal, with its production concentrated in areas close to the sea, with some humidity and little risk of late frost.
Characteristics
Flowering:
The flowering of the Rocha pear occurs in the first half of April. Although adverse weather is frequent at this time, with cold and strong winds, the Rocha pear tree is still able to produce fruit thanks to parthenocarpy.
To produce flowers, it is one of the varieties that needs less hours  of cold. This allows it to be grown in regions close to the coast. Requires 550 hours below 7°C by February 15th
Pollination.
The Rocha pear is capable of producing pears without using other pear tree varieties as pollinators. In any case, the ideal is that, if we want to have a good production, we propose that other varieties improve the quantity and quality.
Good pollinating varieties of Rocha pear are: General Leclerc, Passe Crassan and William's
Medium vigor tree with good production.
Medium bell-shaped fruits, light yellowish-green in color, with brown freckles, colored on the sunny side.
White flesh, grainy, sweet, very juicy and fragrant. Excellent for use in cakes, pastries and desserts.
Maturation in August-September.
Very good storage capacity.