Theobald I of Ferrette

Theobald I of Ferrette (c. 1250 – 1310/11) ruled the County of Pfirt in Upper Alsace from 1275. A younger son of Count Ulrich II, he inherited because the sons of his elder brothers were still underage.

He backed King Adolf of Nassau, who named him imperial advocate in Alsace against Albert of Austria, though after Adolf's defeat his position grew difficult. He left a son, Ulrich III, who succeeded him on his death in 1310 or 1311.