No Robert De Niro isn't gay as he's been married twice to women
Robert de Cardeny died in 1437.
Robert de Mowbray died in 1125.
Robert de Stuteville died in 1283.
Robert de Cliderhou died in 1339.
Robert de Prebenda died in 1284.
Robert de Keldeleth died in 1273.
Robert de Graystanes died in 1336.
Robert de Vaugondy died in 1766.
Robert de Comines died in 1069.
Robert de Eglesfield died in 1349.
Robert de Montesquiou died in 1921.