Philipp III. von Falkenstein

Philip III of Falkenstein (, 1257 – 9 February 1322), Lord of Falkenstein, Münzenberg and Lich, Hesse was a member of the Lich line of the Falkenstein dynasty, son of , Lord of Münzenberg and Falkenstein, who founded the Lich line, and his wife Mechtild of (1238 – 3 December 1288).

Ancestry Philip III was a member of the -Falkenstein family, which were originally based at , in Donnersbergkreis in the Palatinate and had held part of the Münzenberg Inheritance in Wetterau since 1255.

Lordship Before 1295, his father Werner I had moved his seat away from Münzenburg to the nearby town of Lich after he had inherited another part of the Münzenberg Inheritance. Philip had a large water castle built at Lich, in order to protect the spot where the road crossed the Wetter river. While in the service of the German King Albert I, the king promoted Lich to the rank of town by a charter of 10 March 1300 – it had already been referred to as "oppidum nostrum" (our town) in 1297. In 1313, Emperor Henry VII promoted Königstein im Taunus to town rank as well, which had formerly belonged to the and had been part of the Falkensteins' domains since 1255.

A long-running conflict with Ulrich I of Hanau over the Münzenburg Inheritance and especially the Jewish tax of and Münzenberg was brought to an end in 1304 with an arbitration in Philip's favour.

Family Philip married, first, in 1287, Mechthild of Eppstein (1269–1303), daughter of and Mathilde of Isenburg. They had the following children: Elisabeth of Falkenstein (died 1 September 1328), who married Raugrave Henry III of Neuenbaumburg Isengard of Falkenstein (1280–1326), who married Luther of Isenburg-Grenzau Werner of Falkenstein (died 1309) Ulrich II of Falkenstein (died 1307) Philipp IV of Falkenstein (1272–1312), who married Adelheid of in 1294.

He married, secondly, in 1303, Luckard(e) of Isenburg (died 11 October 1309), an illegitimate daughter of Ludwig I of Isenburg von Cleeburg, Burggrave of Gelnhausen, with whom he had the following children: Elsa of Falkenstein (died 1317) (died 14 May 1333), who married , daughter of Emicho I, Count of Nassau-Hadamar (died 1329) and Imagina of (died 1367).

He married thirdly, on 11 October 1309, Mechtild of Hesse (1267 – after 1332), widow of of , daughter of Landgrave Henry I of Hesse and Adelheid of Brunswick, who was a descendant of Saint Elizabeth of Thuringia.