Family tree of water family

Once upon a time there were three brothers they belongs to king of water family there grand grandfather was king of water then there was one lava family which was jealous from water family after 1 year and three brother parent died.then they use there water power and take one tree and eldest brother watered the top of tree the water over flow from tree and came to ground .The place where is tree located is full from magic water after two,three minutes the water stop then eldest brother tell we will remember this tree as on which date our parents died