Nearly 73.4% of green space is accounted for by forest, 15.5% more green space are the meadows, parks 6.3%, and 2.5% in small gardens. Agricultural land (1.5%) and leisure areas (10.8%), are only a small proportion of green space territories. Waters in Hietzing take in an area of 0.8% (Wienerwald streams in Lainzer Tiergarten). The proportion of traffic areas in the district region is, with 6.0%, the lowest value in Vienna. History From village to suburb of Vienna The name "Hietzing" derives itself from "Hiezo" or "Hezzo" (short form of "Heinrich"). The first authentic mention comes from the year 1130. Since 1253 the Klosterneuburg Abbey appeared. The oldest properties were in the area of Altgasse, north therefrom (direction of the Wienfluss canal) were cattle meadows, a few south fields and expanded vineyards. In the vicinity of the Küniglberg and around the zone of the current Hietzinger cemetery, there was also a quarry as well as sand pits and gravel pits whose material was used in the building of Schoenbrunn castle. Before the first Turkish siege (1529), Hietzing was an emerging wine-making place. After the heavy destruction, the place recovered quickly. The mid-17th century began the transformation of the vineyards into farmland. The growing popularity of the pilgrimage site, "Maria Hietzing" required the expansion of Seelsorge. Choir house and community inn were erected where pilgrims had a possible overnight stay. The second Turkish siege (1683) devastated the place and the remaining vineyards. The place was almost depopulated, and the new settlement proceeded only slowly. The construction of the castle Schoenbrunn, which was built on the site of the destroyed 1683 Katterburg, eventually led to the great boom of the former village Hietzing. The proximity of the Imperial Court brought with it strong construction activity, but it was yet to create quarters for aristocrats and officials. The rapid increase in the number of houses, in the late 18th and early 19th century, changed the structure of the place. The new houses were built by people who occupied superior social position and, in Hietzing, spent the summer. This influx increased the earnings potential of the villagers and shapes the image of Hietzing to the present day. In 1860, the current district area was reached by the first modern transportation: the connection train, Verbindungsbahn (Vienna), with stops in St. Veit, Lainz und Speising. The train was led through a very thinly populated zone at