Lope Íñiguez (c. 1050 – 1093) succeeded his father Íñigo López to become the second Lord of Biscay in 1076. Íñigo died shortly after the assassination of his overlord Sancho IV of Navarre and the subsequent takeover of Biscay, Álava, part of Guipúzcoa and La Rioja by Alfonso VI of Castile. He accepted Alfonso as his lord and his son followed suit, although after Íñigo's death the tenencia of Nájera, the most important in La Rioja, which he had held was given to García Ordóñez, husband of Urraca, sister of the deceased Navarrese king. Nevertheless, it was Lope and whom the king had swear to uphold and guarantee the fuero of Nájera which he had granted (1076).