Complex sentence: Few may know this, but in May 2004, he became a candidate for bishop in the AME Church, but due to his age (aged 72 at the time), he decided to withdraw his candidacy.
Split into simpler sentences: Few may know this, but in May 2004, he became a candidate for bishop in the AME Church. However, due to his age (72 years old at the time), he decided to withdraw his candidacy.