Complex sentence: Stephan competed in the giant slalom at the 2006 Winter Olympics while Elisabeth competed in the downhill at the 2006 and 2010 Olympics and won bronze in the latter, fifty years after her mother won bronze in the same event.
Split into simpler sentences: Stephan competed in the giant slalom in 2006 and Elisabeth competed in the downhill in 2006 and 2010. She won bronze in the latter, a half-century after her mother won bronze in the same event.