Samuel's Fortress (Macedonian: Самуилова тврдина) is a fortress in the old town of Ohrid, Republic of Macedonia. It was the capital of the First Bulgarian Empire during the rule of Tsar Samuel at the turn of the 10th century. Today, this historical monument is a major tourist attraction and was renovated in 2003. According to recent excavations by Macedonian archaeologists, it was contended that this fortress was built on the place of an earlier fortification, dated to the 4th century BCE, which was probably built by King Philip II of Macedon.