Complex sentence: His brother Ismael changed his name to "Oro II" as a tribute to his brother and kept wrestling in CMLL until his retirement in March 2011.
Split into simpler sentences: His brother Ismael changed his name to "Oro II" as a tribute to his brother and kept wrestling in CMLL for a few months. The second Oro II would wrestle for CMLL until his retirement in March 2011.