Bambergで最も古い樹木はどれですか。
The closest thing to a dated tree is the Great Lime of Teuchatz, well outside the city itself, whose girth points to something like 350 to 400 years if a local legend about its planting is right: soldiers buried here during the Thirty Years' War, sometime in the 1630s. None of Bamberg's other four protected trees carries any age estimate at all. The city's own register gives only a location and a protected status for those four. If you know how old any of Bamberg's five actually are, tell us.
Bamberg's Naturdenkmal-Verordnung, passed in November 1995 and amended in 2007, protects trees across the city and its outskirts and dates almost none of them. Each register entry carries a number, a common name, a location and the fact of protection, nothing about planting dates or growth. The five trees here were cross-checked against Wikipedia's reproduction of the register and geotagged Commons photographs. Three of the first four stand within a kilometre and a half of each other on the hillside above Wildensorg: two limes by a spring, an oak on the Teufelsgraben, and a lime on a demolished manor's site. The fourth stands alone by the Regnitz in Bug. None of those four carries a girth measurement. The fifth, the Great Lime of Teuchatz, stands sixteen kilometres out on a road with no rail and no confirmed bus, documented instead by a dedicated Wikipedia article citing published dendrology surveys, and it is the only one of the five anyone has ever measured: 770 centimetres round in 1990, 822 in 2008.