MILAN — Ottavio Missoni, the patriarch of the iconic fashion brand of zigzag-patterned knitwear that helped launch Italian ready-to-wear and turn Milan into a fashion mecca, died Thursday just months after his eldest son disappeared without a trace. He was 92.
Mr. Missoni ‘‘passed away serenely’’ in his home in the town of Sumirago, north of Milan, where Missoni SpA is also based, the company said in a statement.
It was another sorrow for the family in a year that marks the 60th anniversary of their company’s founding, following the disappearance in January of the Missonis’ eldest child, company chief executive Vittorio Missoni.
The 58-year-old disappeared with his wife and four others while flying in a small plane during a vacation to a Venezuelan island. They were never found, and the cause of the disappearance remains a mystery. Full story for BostonGlobe.com subscribers.