What accomplishment was king Label of Ethiopia most famous?

Lalibela, not Label, was the most famous king of Ethiopia. He is best known for the construction of the magnificent monolithic rock-hewn churches in Lalibela, which are considered UNESCO World Heritage Sites and are still in use today. These 11 monolithic churches, carved entirely from a single piece of rock, are remarkable examples of medieval engineering and architectural skills. Lalibela's reign and contributions to the construction of these churches have left an indelible mark on Ethiopian history and culture.