Was Crocodile stronger at Marineford? Or was he holding back in Alabasta?

 During the Alabasta arc, Crocodile displayed a level of power that was initially considered overwhelming by the Straw Hat Pirates. He possessed the Logia-type Devil Fruit called the Suna Suna no Mi (Sand-Sand Fruit), which granted him the ability to control and transform into sand. He had a reputation as a Shichibukai and controlled the desert kingdom of Alabasta from the shadows. His strength was showcased through his battles with Luffy and others. At Marineford, Crocodile was present as part of the war that took place at Marine Headquarters. While he did participate in the battle, he didn't display the same level of dominance as some other powerful characters present. This has led fans to speculate that he might not have been as strong as initially portrayed in Alabasta. It's important to note that power scaling and character abilities can be subject to interpretation and development by the author. Oda often keeps details deliberately open-ended to keep the story intriguing.

What is the first regnal year of each English monarch?

 The first regnal year of each English monarch is as follows:

William I (William the Conqueror): 1066

William II (William Rufus): 1087

Henry I: 1100

Stephen: 1135

Henry II: 1154

Richard I (Richard the Lionheart): 1189

John: 1199

Henry III: 1216

Edward I: 1272

Edward II: 1307

Edward III: 1327

Richard II: 1377

Henry IV: 1399

Henry V: 1413

Henry VI: 1422

Edward IV: 1461

Edward V: 1483 (Edward V's reign was brief and disputed, as he was never crowned and was later declared illegitimate by his uncle, Richard III)

Richard III: 1483

Henry VII: 1485

Henry VIII: 1509

Edward VI: 1547

Mary I: 1553

Elizabeth I: 1558

James I: 1603

Charles I: 1625

Charles II: 1660

James II: 1685

William III and Mary II: 1689 (William III and Mary II ruled jointly)

Anne: 1702

George I: 1714

George II: 1727

George III: 1760

George IV: 1820

William IV: 1830

Victoria: 1837

Edward VII: 1901

George V: 1910

Edward VIII: 1936 (Edward VIII's reign was brief, as he abdicated the throne in order to marry Wallis Simpson)

George VI: 1936

Elizabeth II: 1952