Short answers, pulled from the story.
Sir Geoffrey Boleyn (1406-1463) was an English merchant and politician who served as Lord Mayor of London from 1457 to 1458. He is historically significant as the great-grandfather of Queen Anne Boleyn, who became the mother of Queen Elizabeth I, and as the man who built the civic and mercantile foundation of the Boleyn family's rise.
Geoffrey Boleyn rose through London's merchant class, gaining the freedom of the City through the Company of Hatters in 1428 before transferring to the more prestigious Mercers' Company in 1435-36. He served as Sheriff of London in 1446-47, as a Member of Parliament in 1449, as an alderman from 1452, and as Master of the Mercers' Company in 1454, before becoming Lord Mayor in 1457-58 and receiving a knighthood from King Henry VI.
Geoffrey Boleyn purchased the Kentish manors of Hever Cobham and Hever Brocas, the two halves of the manor of Hever, from Sir Thomas Cobham in 1462, shortly before his death in 1463.
Geoffrey Boleyn was buried in the Church of St Lawrence Jewry in the City of London; his will was proved in July 1463. The church was destroyed in the Great Fire of London, but the antiquary John Weever had preserved the memorial inscription, which described Geoffrey as "citizen, mercer and mayor of London."
By his second wife Anne Hoo, Geoffrey Boleyn had two sons and three daughters according to most sources. His son Sir William Boleyn (1451-1505) married Margaret Butler, co-heiress of the 7th Earl of Ormond, and their son Thomas Boleyn became the 1st Earl of Wiltshire and the father of Queen Anne Boleyn.
Geoffrey Boleyn purchased the manor of Blickling in Norfolk from Sir John Fastolf in 1452. The purchase was followed by a Chancery suit over the terms of sale. Geoffrey built a house of brick there and also constructed the chapel of St Thomas at the east end of the north aisle of Blickling church.