Jachranka
Jachranka  is a village in the administrative district of Gmina Serock, within Legionowo County, Masovian Voivodeship, in east-central Poland. It lies approximately  south-west of Serock,  north of Legionowo, and  north of Warsaw. Name 
The name probably comes from the topographic features ⇒ Niechronka (a place that does not provide a military shelter, a non-defensive place). References

Jachranka