Arle sits on the edge of a geest - a slightly raised band of older sandy soil that runs through the East Frisian marshes - and that geographic accident shaped its early history. By the 12th century, the village was a provostship under the archbishopric of Bremen, registered under the older spelling Erle. Unlike the more powerful provostships of the Münster area, Arle's provosts were not great noblemen but working clergymen - parish priests with extra responsibility for surrounding villages. The St. Boniface Church, built from tuff on a high artificial mound, dates to this period. Boniface was the 8th-century English missionary who Christianized much of Germany, and dedicating churches to him along the Frisian coast was a way of staking claim to a region that had been pagan within living memory.

In 1408, a tower at Arle appears in the historical record - not for being built, but for being captured. It was among the East Frisian castles taken by Hamburg's troops, who had marched into the region with the support of Keno tom Brok, the most powerful Frisian chieftain of his day. The Hamburgers were dismantling the network of fortified houses that small Frisian lords had used to harass shipping. After the campaign, the castle at Arle passed to Hebe - daughter of one Lütet Attenas - and her son Keno. Through Hebe's granddaughter Sophie, the property came to the Howerda family in 1545. In 1613, Focko Beninga bought the nearby hamlet of Dreesche. In 1717 the estate changed hands again, this time to the Barons of Wedel, and in 1786 to the House of Innhausen and Knyphausen of Lütetsburg. The small shield on the village's coat of arms still carries the mark of the Beninga family of Grimersum. Layered ownership over six centuries reads, when you trace it out, like a quietly conducted aristocratic relay race.

Arle is now an Ortsteil - a constituent village - of the larger municipality of Großheide, in the Aurich district of Lower Saxony. It was incorporated into Großheide by the municipal reform law of 1 July 1972, which swept across West Germany in the early 1970s and consolidated thousands of small communes into larger administrative units. Before that, Arle had been independent for as long as it had been called Arle. The earlier name, Erle, simply meant alder - the tree that grows in wet places - and tracking the shift from Erle to Arle is a small linguistic puzzle that local historians enjoy. The village's coordinates - 53.61°N, 7.39°E - put it about fifteen kilometers north of Aurich proper and ten kilometers south of the Wadden Sea coast, well placed for a medieval clergy to keep an eye on both the inland and the sea trade.

The castle is gone. The tower mentioned in 1408 left no foundations that anyone has been able to find with confidence. The provostship, with its layered authority over parish priests, dissolved into ordinary diocesan administration. What remains is the church on its mound, a stretch of geest farmland, and the slow accumulation of family names on coats of arms. For most travelers, Arle is something you pass through on the way to somewhere else. For someone willing to stop, the tuff-stone church is one of the older standing structures in East Frisia, and it has been holding its mound up since before England had a single language and before Germany existed at all.