The only time this man ever cried was when his grandson died after being hit in the heart by a king’s spear. In one story, this man pretends to be a baby and eats a cake in order to scare away (15[1])a giant who had just (-5[1])chipped a tooth on a cake filled with iron. Instead of healing (-5[1])a rival (15[1])for one of his wives, this man (15[1])kept letting water (15[1])slip through his fingers. (15[1])In order to resist the (15[1])(*) sleep-inducing harp (-5[1])of a figure who would burn down the same city every year, this man held a spear against (-5[1])his forehead. This man was originally named Deimne but changed his name when his hair prematurely turned white. The power of nine hazelnuts ingested by a salmon were transferred to this man (10[2]-5[1])when he sucked his burnt thumb while cooking it. For 10 points, name this father of Oisín, an Irish hero who led the Fianna. ■END■ (10[4])