Found the memorial to his mother mentions Anthony as the only son no Hackaliah
HERE LYETH YE BODIE OF YE LADYE IANE RATCLIFFE ONE OF
YE DAVGHTERS OF ROBART EARL OF SVSSEX WHO ENDED
HER LYFE AT COWDRY Ao Do 1552 YE 22 OF IVLYE & WAS
OF YE AGE OF 20 YEARES & YE FIRST WYFFE OF ANTHONY
VICOVNT MOVNTAGVE HERE BVRYED BY WHOME HE HAD ISSVE
ONE SONNE ANTHONY BROWNE ESQVIER DECEASED & HERE
LIKEWISE BVRIED WHICH ANTHONY WAS FATHER VNTO AN
THONY VICOVNT MOVNTAGVE NOW LIVINGE * HE HAD ALSO
BY HER ONE DAVGHTER MARYE BROWNE YET LIVINGE WHO
WAS MARIED FIRST TO HENRY WRYTHEOSTEY EARLE OF
SOVTHAMPTON & AFTER TO SR THOMAS HENEAGE
KNIGHT VICE-CHAMBERLAN TO *Q* ELIZA =
BETH & ONE OF YE HONORABLE
PRIVIE COVNCELL
http://www.publicsculpturesofsussex.co.uk/object?id=274