Michael I Cerularius died in 1059.
Venance Grumel has written: 'The schism of Michael Cerularius in 1054' -- subject(s): Eastern and Western Church, Schism
Michael is an angel. Angels do not die.
Michael is an archangel and archangels do not die.
By the time, Great Schism the patriarch of Contantinople named Michael Cerularius dispute with Pope Leo IX. They differed with Roman church in their Eucharist. They do not use unleavened bread.
Michael has always been an archangel and archangels do not die.
No Michael's family did not see him die. The family was in the kitchen when Michael died and the maid found him dead and then called the police.
Michael hasn't died yet
Michael Thonet died in 1871.
Michael Upton died in 2002.
Michael Eytzinger died in 1598.
Michael Findlay died in 1977.
Michael Raucheisen died in 1984.