The man who did this was sultan Fatih, an ottoman follower of the hanafi madhab, Maturidi in creed & naqsbandi in tariqa.
Ertugrul Ghazi was the man who laid the foundations for the Ottoman Empire, their son was Osman the 1st. The first sultan of the Ottoman Empire.
The rest is history.
"love of sayyiduna muhammed ﷺ unites people whereas the love of dunya divides people" - shaykh Saqib al shaami