INDIANAPOLIS -- A man died Monday, days after he was stabbed in a swordfight with the grandson of a woman who was also fatally stabbed when she tried to intervene in the fight, police said.

Adolf Stegbauer, 69, died from complications of a stab wound, Indianapolis police said. Charges that were already pending against the man who police said stabbed Stegbauer, Chris Rondeau, 39, were expected to be upgraded.

Franziska Stegbauer, 77, also died as a result of stab wounds after the fight early Thursday morning, but police were not initially sure which of the men had stabbed her.

Rondeau and Adolf Stegbauer got into an argument at a home in the 5200 block of Raceway Road that escalated when one of the men grabbed a sword, prompting the other man to also brandish a sword.

Rondeau was being held on an attempted murder charge stemming from the stabbing of Adolf Stegbauer.