Saru Batu Savcñ Bey (1249âÂÂ1286) was the older brother of Osman I, the founder of the Ottoman Empire. He is known to be the most 'mysterious' of ErtuÃÂrul's children.
It is unknown whether ErtuÃÂrul actually had three or four children and it has confused many historians. This is because of the two names, Saru Batu and Savcñ. Some historians combine the two names together while others don't.
At Savcñ Bey's mausoleum, there are two graves. One is marked as Saru Batu and another named Savcñ, which creates this problem. However, in Ottoman tradition, there is no reference to this at all.
According to another source, Savcñ was the nickname/title of Saru Batu. This was the title of someone who was a diplomat or administrator of a tribe. Savcñ Bey had this post from the time of his father, ErtuÃÂrul's leadership, and his brother, Osman's leadership.
Saru Batu Savcñ Bey died during the Battle of Domaniç which occurred in 1286 before the founding of the Ottoman Empire. It is also known in ancient Ottoman sources as the (, also known as the Battle of Domaniç). The Battle of Domaniç was a major turning point in the founding of the Ottoman Empire. This is why modern Turkish historians consider it the empire's first real war. This is the third Ottoman battle after the () in 1284 and the Siege of Kulaca Hisar at Tavas in 1285.
Sultan Kayqubad I gave ErtuÃÂrul, the village of SöÃÂüt as a winter residence for the Kayñ tribe which was warm to them and their animals. He gave them the Domaniç region for when it was cool. Saru Batu Savcñ Bey was buried in the village of ðkizce in Domaniç, where his grandmother, ErtuÃÂrul's mother, Hayme Ana, was also buried near him in ÃÂarà Âamba. His tomb was known to people as "Jad Bakr" ().
In August, a celebration in memory of him is held in Karaköy in Istanbul, Turkey. In a video from 2019 the description is as follows: âÂÂSaru Batu Savci Bey, the son of ErtuÃÂrul Gazi, was commemorated at the tomb of Karaköy in our district in the 732nd year of his martyrdom.â This means he died on 1287 AD, 732 years ago.
There are also poems in the works titled âÂÂâ () by Ibn Kemal/Kemalpaà Âazâde (aka à Âemseddin Ahmed). These accounts may be unreliable but they mention that he died in the Battle of Domaniç ().
In the Turkish television series ', he is played by the Turkish actor, Kerem Bekià ÂoÃÂlu, and in the sequel to the show, ', he is played by Kanbolat Görkem Arslan.
In Kuruluà  Osman, YaÃÂñzkan Dikmen appears as Bayhoca. Savcñ Bey's wife also appears but is named as "Lena Hatun", portrayed by Seray Kaya.