'Duchess of Oldenburg' is an old

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

n cultivar (1750–1799) of cultivated

apple An apple is a round, edible fruit produced by an apple tree (''Malus'' spp.). Fruit trees of the orchard or domestic apple (''Malus domestica''), the most widely grown in the genus, are agriculture, cultivated worldwide. The tree originated ...

which has attractive streaks of yellow and red. It was commonly but not universally known in America simply as 'Oldenburg' after the American Pomological Society listed that as the official name, a name also used for the ' Geheimrat Dr. Oldenburg' cultivar. The skin of the apple is more prominently striped than that of 'Geheimrat Dr. Oldenburg'. Duchess originates in the Tula area of Russia, from where it spread to many countries under different names, like: ''Duchess, Duchesse, Duchesse d'Oldenburg, Oldenburg, Borowitsky, Brunswick, New Brunswick, Charlamowsky, Early Joe'' and ''Queen Mary''. It was once so popular that it was used as reference in evaluation of other apple cultivars. It is widely cultivated in Europe and in the United States and is a parent of cultivars including ' Alkmene', '

Northern Spy Northern Spy also called 'Spy' and 'King', is a cultivar of domesticated apple that originated on the farm of Oliver Chapin in East Bloomfield, New York, in about 1840. It is popular in upstate New York. The Northern Spy was one of four apples h ...

' and ' Pinova'.Duchess of Oldenburg
by Orange Pippin Duchess has a generally good resistance to major apple diseases, good vigour, flowers early-mid season, blossoms are self-sterile, gives an early harvest and good crop of variable size of apples, which use for fresh eating as well as for cooking. Fruit melts by cooking, resulting in a good purée which has an orange tint. This apple is easy to cultivate but fruits do not keep fresh very long.

References

Russian apples Apple cultivars {{apple-fruit-stub