2 Samuel 9:9-10

9Then the king summoned Saul’s servant Ziba and said to him, “I have given to your master’s grandson all that belonged to Saul and to all his house. 10You and your sons and servants are to work the ground for him and bring in the harvest, so that your master’s grandson may have food to eat. But Mephibosheth, your master’s grandson, is always to eat at my table.”

Now Ziba had fifteen sons and twenty servants.