When many quicksilver mines opened around the Potzberg's peak in the latter half of the 18th century, workers also settled in Föckelberg, and the population figure rose noticeably.

Today, however, archaeologists can no longer tell, short of conducting digs, which of the many mounds on the Potzberg are Celtic barrows and which are tailing heaps from the former mining industry.

The Imperial pledge was never redeemed by the Holy Roman Empire, and so all these villages, along with Föckelberg, remained under the Counts of Veldenz.

In 1444, Frederick III, Count of Veldenz, the last from the Hohengeroldseck family to rule the county, died without a male heir; the county passed to his son-in-law Stephen, Count Palatine of Simmern-Zweibrücken (son of Rupert, King of Germany), widower of Frederick's daughter, Anna of Veldenz.

Stephen, combining his lands, created the new County Palatine of Zweibrücken, which in the fullness of time came to be known as the Duchy of Palatinate-Zweibrücken.

Details of the misfortunes wrought upon Föckelberg itself in these wars are unknown, but something does survive from that time: a Huberweistum (a Huber was a farmer who owned a whole hide of land, while a Weistum – cognate with English wisdom – was a legal pronouncement issued by men learned in law in the Middle Ages and early modern times) from the municipality of Föckelberg.

The first part deals with the redefinition of the hides (fields) within municipal limits, and then the document goes on to lay down the rules of conduct for the farmers.

Belonging to this were Veldenz on the Moselle, the Ämter of Lauterecken and Reichenbach, the Remigiusberg and later also Lützelstein (now called La Petite-Pierre) in Alsace.

In 1788, Föckelberg was mentioned in Goswin Widder's Geographische Beschreybung der Kurpfalz (“Geographical Description of Electoral Palatinate”).

Electoral Palatinate rule came to an end when French Revolutionary troops marched into Germany in the late 18th century.

After a thorough territorial reorganization in 1801, Föckelberg belonged to the Mairie (“Mayoralty”) of Neunkirchen, the Canton of Wolfstein, the Arrondissement of Kaiserslautern and the Department of Mont-Tonnerre (or Donnersberg in German), whose seat was at Mainz.

In the Bavarian time that followed, beginning in 1816, the village belonged within the Bayerischer Rheinkreis (the bulk of the Palatinate that the Congress of Vienna had awarded to the Kingdom of Bavaria) to the Landkommissariat of Kusel, the canton of Wolfstein and the Bürgermeisterei (“Mayoralty”) of Neunkirchen.

By the time of the 1933 Reichstag elections, after Hitler had already seized power, local support for the Nazis had shrunk to 23.0% while the Communists’ share of the vote had risen greatly to 22.1%.

The Nazis nevertheless prevailed in the end, and Hitler's success in these elections paved the way for his Enabling Act of 1933 (Ermächtigungsgesetz), thus starting the Third Reich in earnest.

[11] Originally it was first and foremost farmers and forestry workers who lived in Föckelberg, and for a while also miners who worked the Potzberg's quicksilver mines.

With the permanent introduction of the Reformation into the County Palatine of Zweibrücken about 1537, all subjects had to adopt Martin Luther’s teachings as their faith, and this included everybody in Föckelberg.

Unlike what later happened in Palatinate-Zweibrücken, there was no further conversion to Calvinism in the County Palatine of Veldenz-Lützelstein, to which Föckelberg belonged as of 1543.

From this time comes a story that tells of how the pastor always rode in a calèche from Theisbergstegen to a certain oaktree in the Föckelberger Wald (forest), when he wanted to hold church services in Bosenbach.

The charge on the dexter (armsbearer’s right, viewer’s left) side is the Potzbergturm, a lookout tower that stands on top of the Potzberg and serves as a prominent local landmark.

The lion on the sinister (armsbearer's left, viewer's right) side stands for Electoral Palatinate, which exercised authority in Föckelberg under the Old Empire.

[20][21] The following are listed buildings or sites in Rhineland-Palatinate’s Directory of Cultural Monuments:[22] Föckelberg holds its kermis (church consecration festival) on the fourth weekend in July.

The decline of farming in Föckelberg has since progressed, and so most people seeking a livelihood nowadays must commute to jobs outside the village, mainly to the region around Kusel and to Kaiserslautern.

Also of undoubted importance is tourism, mainly in connection with the Potzberg's summit with its mountain hotel, its lookout tower and its animal park.

[26] Föckelberg lies on Kreisstraße (District Road) 34 (locally known as Hauptstraße), which leads from Altenglan to Neunkirchen am Potzberg and Landesstraße 364.

1899 in Föckelberg; d. 1983 in Landau) – jurist, “state scientist” and politician; editor at newspapers that were suppressed during the time of the Third Reich for political reasons, printing shop (which was likewise shut down) owner; after the Second World War, as member of the CDU, deputy mayor (Bürgermeister) and later chief mayor (Oberbürgermeister) of Landau, honorary citizen of the town and bearer of the Order of Merit of the Federal Republic of Germany (Grand Cross).