The first monumental mausoleum of the Mughal dynasty; Humayun died in 1556. The patron was Humayun's son Akbar. The tomb is situated in the centre of a series of four-plot gardens (Ind.-Pers. char-bagh), with shallow water channels, pools and paved pathways laid out symmetrically on all sides, the first use in a mausoleum setting. The tomb is constructed of red sandstone and faced with coloured slate. The lavish use of white marble to outline panels and arches was an important precedent for subsequent Mughal architecture. The tomb building stands on a high double plinth .